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05-28-2001, 04:41 PM
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#1 |
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The Photoshop Guru
Join Date: Feb 2001
Location: Mecca, Indiana
Posts: 1,419
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Pulling codes - Please help!!!!!!
Just hooked up a scanner to my car and got 34, 66, and 91.
34 was EGR valve position, sensor or pressure. 66 was Mass air sensor voltage too low. And 91 is O2 sensors, which I already bought so this one should go away I hope. Any thoughts? Here are the mods that would have anything to do with this... • 76mm C&L MAF • 24lb SVO injectors • Walbo 190lph fuel pump • 65mm Explorer TB • MAC cold air kit • K&N air filter • GT-40 intake • Ported stock ET7E heads - 3 angle valve job - shaved .030 • F303 cam • 1.6 roller rockers • Crane valve springs • MAC 1 5/8" long tube headers • MAC 2 1/2" Pro Chamber • MAC 2 1/2" cat back with chrome tips • MSD Blaster coil • Taylor Spiro Pro plug wires Thanks! ------------------ Too much to list. Best ET on the car so far with stock 2.73 gears - 13.73@102mph Indiana Stangers Association Buy your parts here ICQ# 42269241 |
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05-28-2001, 04:42 PM
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#2 |
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The Photoshop Guru
Join Date: Feb 2001
Location: Mecca, Indiana
Posts: 1,419
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Update:
The first test was with engine off. The test with engine on shows codes 33, 44, and 94. 44 and 94 have to do with the thermactors which I no longer have and the holes are plugged in the heads. 33 is another EGR problem. ------------------ Too much to list. Best ET on the car so far with stock 2.73 gears - 13.73@102mph Indiana Stangers Association Buy your parts here ICQ# 42269241 |
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05-28-2001, 05:09 PM
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#3 |
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Registered Member
Join Date: May 1999
Location: Georgia
Posts: 3,866
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dont sweat the thermactor and egr codes. try resetting computer to see if 02 code goes away. Might need a maf meter? are u having driveability problems?
------------------ 1993 GT/AOD '93 Mustang GT |
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05-28-2001, 07:13 PM
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#4 |
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The Photoshop Guru
Join Date: Feb 2001
Location: Mecca, Indiana
Posts: 1,419
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The car bucks from 1600rpm and down when driving. It also surges at idle. It had the surging idle before all these mods went on (engine was stock), but the bucking problem is new with the mods.
The exhaust seems to be running very hot and smells like unburnt fuel so I think it's running rich too. I have new O2 sensors and am going to try resetting the idle/TPS/computer, and get a new fuel filter and see what that does. Adjustable FPR is on the way too. Does it sound like I'm on the right track? ------------------ Too much to list. Best ET on the car so far with stock 2.73 gears - 13.73@102mph Indiana Stangers Association Buy your parts here ICQ# 42269241 |
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05-28-2001, 09:11 PM
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#5 |
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Registered Member
Join Date: Apr 2001
Location: Bowling Green, OH
Posts: 270
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I'm running a 75mm Pro-M bullet with 24lb injectors and used to have a surging idle. Also, my car would die right away when trying to start it on a cold morning. After playing with the tps (.98v) and idle (600 - 700 RPMs on factory tach) my car idles perfectly and always starts up on the first try no matter how cold it is outside.
------------------ 1989 lx notch 89,000 miles bolt-ons,stock heads/cam 60'- 2.07, 8.90@78, 13.93@99 [This message has been edited by TJR (edited 05-28-2001).] |
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05-29-2001, 07:21 AM
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#6 |
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Procharged!
Join Date: May 1999
Location: Hanover, PA
Posts: 1,539
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Kevin- It's sounds like you are on the right track. What do your plugs look like? If it's pig rich like you describe they should be black, check them after a quick trip at WOT and that will tell you if they are rich or lean.
Since I got my car running good all the issues I blamed on the C&L are gone, smooth idle, well as smooth as it gets with the cam I have. I'm going to have my friends frend powder coat it, it does tend to soak the heat up from the headers though. I took a ride in Mondo's car last night, whew man what 750HP+ will do for ya, it saw about 23psi of boost and we were gone, I had to take him for a ride in mine to show him what a real car felt like  .------------------ Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension,S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon! |
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05-29-2001, 08:52 AM
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#7 |
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The Photoshop Guru
Join Date: Feb 2001
Location: Mecca, Indiana
Posts: 1,419
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He was telling me about that Rick. Man, I'll bet that was fun
I'll go take the car for a drive at WOT and see what the plugs look like. We kinda have it narrowed down to the O2 sensors causing most of the problem. We read in the code we were getting on them that when the O2's go bad they detect a lean condition and compensate rich to make up for it which sounds exactly like what my car is doing. Hopefully the C&L meter is fine because I don't want to have to pull this nicely machined meter off of here and stick a piece of plastic on there. Oh yeah, does anyone know about that code 66 I got? It said mass air sensor voltage too low? Is that a bad mass air sensor? How can I find out? ------------------ Too much to list. Best ET on the car so far with stock 2.73 gears - 13.73@102mph Indiana Stangers Association Buy your parts here ICQ# 42269241 [This message has been edited by 2FastLX (edited 05-29-2001).] |
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05-29-2001, 12:27 PM
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#8 |
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Registered Member
Join Date: May 1999
Location: Georgia
Posts: 3,866
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troubleshoot your mass air meter. Buy a book with the proper voltages, a multi-meter, and knock yourself out.
------------------ 1993 GT/AOD '93 Mustang GT |
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05-29-2001, 12:53 PM
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#9 |
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Procharged!
Join Date: May 1999
Location: Hanover, PA
Posts: 1,539
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Kevin- do you have the Probst Fuel injection book? If not since you and your brother are going to do more on the side get it, I think Jegs still sells it. It's great and has all the wiring schematics and tells you how to test all the componets. It could be your stock electronics and not the C&L piece itself, does any of your friends have their stock meter laying around you could try that.
------------------ Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension,S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon! |
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05-29-2001, 12:55 PM
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#10 |
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Procharged!
Join Date: May 1999
Location: Hanover, PA
Posts: 1,539
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Kevin- do you have the Probst Fuel injection book? If not since you and your brother are going to do more on the side get it, I think Jegs still sells it. It's great and has all the wiring schematics and tells you how to test all the componets. It could be your stock electronics and not the C&L piece itself, does any of your friends have their stock meter laying around you could try that.
------------------ Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension,S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon! |
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05-30-2001, 10:39 AM
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#11 |
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The Photoshop Guru
Join Date: Feb 2001
Location: Mecca, Indiana
Posts: 1,419
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Well, I installed new O2 sensors and drove it to work and it didn't make a bit of difference until I drove the car home. Then it got worse than it has ever been bucking from 2300rpm and down now. The idle seems to be a little better maybe, but not much.
I still have to re-check the TPS but I know it was set at .98 since it was just set not too long ago. Timing is at 14 degrees. Plugs look black as hell. I guess I'm going to buy the new electronics for the mass air and see what that does. After that I'm going to get the FPR. If that doesn't work I'm yanking this stuff back off and going back to stock  Much more of this and I'll be ready to sell this damn thing.------------------ Too much to list. Best ET on the car so far with stock 2.73 gears - 13.73@102mph Indiana Stangers Association Buy your parts here ICQ# 42269241 [This message has been edited by 2FastLX (edited 05-30-2001).] |
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05-30-2001, 11:53 AM
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#12 |
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Registered Member
Join Date: May 1999
Location: Indiana
Posts: 512
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BLASPHEMY!!! Don't be talking like that Kevin, we WILL figure this out!
 I understand your frustration but we will get it figured out. I have an Air Adjuster you can borrow to see if it is in the mass air calibtration... Is your EGR hooked up? hang in there bud, we will get it resolved.  ------------------ 92GT all the free stuff and a few bolt-ons, lowered with Ebiach's and Koni's, Kenny Brown subframe connectors, lower G-brace and jacking rails. BBK upper and lower control arms, polyurethane bushings all around and Ken Bell blower, ram-air, 80mm mass air, etc. |
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05-30-2001, 12:48 PM
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#13 |
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The Photoshop Guru
Join Date: Feb 2001
Location: Mecca, Indiana
Posts: 1,419
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Yes, it is VERY frustrating. After the head gaskets blew it has been one problem after another for the past 2 months now. Nothing in this combo seems to be working well with each other and it seems like the more I drive the car the worse it all gets. The engine just doesn't sound right either. It sounds like it could just throw a rod bearing at any time, but maybe that's just me. When I shut the car down it acts like it just stops as soon as I turn off the key like it's overheating, but the cooling system is working great. Maybe that's just the added compression (which isn't much) but it doesn't sound good. Not to mention the transmission issues and the fact that I now have to remove the front cover again to fix a damn coolant leak.
How bout I just leave her sit until you get yours done Mark then I'll drive it up there and leave it for you to play with ------------------ Too much to list. Best ET on the car so far with stock 2.73 gears - 13.73@102mph Indiana Stangers Association Buy your parts here ICQ# 42269241 |
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05-31-2001, 12:54 AM
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#14 |
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I'd rather be basketweaving
Join Date: Feb 2000
Location: Indianapolis
Posts: 2,551
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as you well know, i know how your feeling, well maybe not quite as pissed, when you installed your O2 sensors did you reset your computer by disconnecting the battery for about 15 minutes? i put a set of them on a friends car and forgot to do that, the thing ran like crap and was throwing flames out the pipes, give it a try, and for god sakes DONT SELL YOUR CAR!!!!!!
------------------ 88 Notch, 3.73's, Ported E7's, Explorer int. w/ ported lower, pulleys, 1.7RR's, BBK headers, off-road H-pipe, flowmasters, subframe connectors, 65mm TB, shift kit, March ram air ,MSD coil, U/L control arms, 155lph fuel pump, cheap 2800 stall, Crane Adj.FPR, best 1/4--> 13.77@101.35 |
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05-31-2001, 01:19 AM
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#15 |
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gear banger
Join Date: Aug 2000
Location: CHICAGO
Posts: 1,144
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Don't sell your car Kevin. Hang in there, this is just the crap some of us have to go threw when building motors. When you get it all worked out you will have a grin from ear to ear.
------------------ 347 W/ A-trim 6#'s, Canfield heads, out of the box Systemax II intake, solid roller cam. 11.1 @123mph 1.46 60FT 93lx 5.0 daily driver MY CAR http://www.mustangworks.com/cgi-bin/...splay.cgi?1288 |
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05-31-2001, 08:49 AM
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#16 |
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Registered Member
Join Date: Jan 2001
Location: Moline Il
Posts: 901
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How much vacuum are you pulling at idle? My car experienced alot of the same symptoms: terrible idle; bucking; dumping gas out of the tailpipes; etc.... Turns out I had a bad vacuum leak. The O2's didnt like all the extra air the engine was sucking AFTER the mass air meter....... of course thats just my opinion, i could be wrong.
andy |
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05-31-2001, 11:27 AM
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#17 |
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The Photoshop Guru
Join Date: Feb 2001
Location: Mecca, Indiana
Posts: 1,419
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I've been thinking about it being a vacuum leak myself because I've noticed the brake booster seems to quit working sometimes at idle. I'm going to pic up a vacuum tester tonight and see. How much should I have at idle?
The car ran a little better yesterday. No idea why because I never touched it. As for resetting the computer Drew, that was done before starting the car back up after the O2 swap so that's not it. I'm going to order an FPR tomorrow and buy a few other thing to try in the meantime. ------------------ Too much to list. Best ET on the car so far with stock 2.73 gears - 13.73@102mph Indiana Stangers Association Buy your parts here ICQ# 42269241 [This message has been edited by 2FastLX (edited 05-31-2001).] |
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05-31-2001, 01:29 PM
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#18 |
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Registered Member
Join Date: Jan 2001
Location: Moline Il
Posts: 901
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It should be up around 15 inches at idle. Pick up a can of flammable brake cleaner (or carb cleaner;ether, etc...) spray it around the mounting flange of the upper to lower, and around the t/b to upper. You might even want to try looking around the (lower intake to head) area as well. Let us know what you find out.
andy |
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05-31-2001, 02:10 PM
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#19 |
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The Photoshop Guru
Join Date: Feb 2001
Location: Mecca, Indiana
Posts: 1,419
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I just told my brother today that it might be an upper to lower intake leak. There was one bolt that was kinda stripped out when I bought this intake.
So am I supposed to spray the cleaner around the intake with the car running to see if the idle changes? Thanks for all the help guys. Stay with me until we get this thing sorted out! ------------------ Too much to list. Best ET on the car so far with stock 2.73 gears - 13.73@102mph Indiana Stangers Association Buy your parts here ICQ# 42269241 |
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05-31-2001, 02:52 PM
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#20 |
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Registered Member
Join Date: Jan 2001
Location: Moline Il
Posts: 901
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Thats correct. If you have a leak it will idle up.
andy |
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