WTF is wrong with my EEC??? Need Serious HELP!!(long) - Page 2

10-24-2001, 09:15 PM

well I set the TPS to just below 1. Then I grabbed a test light and checked out one of the fuel injectors. With KOEO, both the wires were live and when the engine cranked over the light pulsed. While I was double checking spark through the wires with another test light, the motor coughed once, but it wouldn't fire up.

[This message has been edited by D&R Stang (edited 10-24-2001).]

PKRWUD · 10-25-2001, 01:51 AM

It really sounds like the TFI module. I know you replaced it, but do you have access to a known good one, just to check?

Which firing order does that cam call for, and is that the same firing order that your ECM is programmed for? How's it set?

Have you verified TDC on the balancer with the rotor?

It really sounds like an ignition problem, more specifically, a module problem. I would try replacing the module with a known good one, and then verify the static timing. You're close. All the other problems have disappeared with the bad ECM. A bad ECM could have damaged the TFI module. I really wish you were closer. You're at the point now where I need to be under the hood.

Take care,
-Chris

------------------
Retired Moderator
MustangNet

My site: Peckerwoods Pit Stop

My teams site: Jim Porter Racing

RACECAR spelled backwards is RACECAR

HEY !!! Are you ASE Certified ??? If you are, ask me about iATN.

[This message has been edited by PKRWUD (edited 10-25-2001).]

10-25-2001, 02:17 PM

If my TFI module was bad, would I still have spark? I'll see if I can find one and swap them out to see if that's it. As far as the cam, it's a Non-roller cam. Therefore the firing order is 1-5-4-2-6-3-7-8. Just like the older 302's. I know of a few people who run Non-HO cams in their stangs without problems, so I don't think that's it. I'll keep playing with it and post any results I find that may help. Thanks again,
Dave

USMC302 · 10-25-2001, 06:10 PM

I'll come over this weekend and we will swap out another TFI module and the elec module at the dist. we will figure it out hopefully.

------------------
88LX NOTCH 5.0, TFS Twisted Wedge Aluminum heads, 2.02 1.60 valves, BBK shorties unequal 1 5/8, off road H-pipe, Flowmasters, Drag lites, custom grind cam, solid motormounts, Aluminum Driveshaft, BBK springs, lakewood 90/10 50/50 shocks, BBK upper and lower control arms, 4.10 gears, centerforce DF clutch, adjustable BBK clutch cable with aluminum quadrant, Billet Steel flywheel, 70mm Acufab Throttle Body,MAC cold fender mount induction, K&N, 3 core radiator, flex-lite-fan, custom hardened push-

10-25-2001, 10:52 PM

IT'S ALIVE!!!! well sort of. I was under the car again replacing the fuel filter. I noticed that the line that comes out of the filter and connects to the steel line that runs up to the motor had a worn spot in it where it had rubbed against another line. I put the new filter in and the car coughed a few times then started. During the short time that it ran, I went around to the back of the car (still jacked up in the air) and looked under it at that worn spot on the line. It was slowly leaking which probably was letting air into the lines which combined with an old fuel filter wouldn't let the car start. Shortly after I saw this, the car died. I'll get another line and replace it and I'm sure that will fix this problem. I didn't see this earlier because the hole wasn't visible until I disconnected the line from the filter.

PKRWUD: Thanks for all of your help and hopefully this will be the end of this problem for me.
Dave

[This message has been edited by D&R Stang (edited 10-25-2001).]

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10-24-2001, 09:15 PM	#21
D&R Stang Guest Posts: n/a	well I set the TPS to just below 1. Then I grabbed a test light and checked out one of the fuel injectors. With KOEO, both the wires were live and when the engine cranked over the light pulsed. While I was double checking spark through the wires with another test light, the motor coughed once, but it wouldn't fire up. [This message has been edited by D&R Stang (edited 10-24-2001).]

10-25-2001, 01:51 AM	#22
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	It really sounds like the TFI module. I know you replaced it, but do you have access to a known good one, just to check? Which firing order does that cam call for, and is that the same firing order that your ECM is programmed for? How's it set? Have you verified TDC on the balancer with the rotor? It really sounds like an ignition problem, more specifically, a module problem. I would try replacing the module with a known good one, and then verify the static timing. You're close. All the other problems have disappeared with the bad ECM. A bad ECM could have damaged the TFI module. I really wish you were closer. You're at the point now where I need to be under the hood. Take care, -Chris ------------------ Retired Moderator MustangNet My site: Peckerwoods Pit Stop My teams site: Jim Porter Racing RACECAR spelled backwards is RACECAR HEY !!! Are you ASE Certified ??? If you are, ask me about iATN. [This message has been edited by PKRWUD (edited 10-25-2001).]

10-25-2001, 02:17 PM	#23
D&R Stang Guest Posts: n/a	If my TFI module was bad, would I still have spark? I'll see if I can find one and swap them out to see if that's it. As far as the cam, it's a Non-roller cam. Therefore the firing order is 1-5-4-2-6-3-7-8. Just like the older 302's. I know of a few people who run Non-HO cams in their stangs without problems, so I don't think that's it. I'll keep playing with it and post any results I find that may help. Thanks again, Dave

10-25-2001, 06:10 PM	#24
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	I'll come over this weekend and we will swap out another TFI module and the elec module at the dist. we will figure it out hopefully. ------------------ 88LX NOTCH 5.0, TFS Twisted Wedge Aluminum heads, 2.02 1.60 valves, BBK shorties unequal 1 5/8, off road H-pipe, Flowmasters, Drag lites, custom grind cam, solid motormounts, Aluminum Driveshaft, BBK springs, lakewood 90/10 50/50 shocks, BBK upper and lower control arms, 4.10 gears, centerforce DF clutch, adjustable BBK clutch cable with aluminum quadrant, Billet Steel flywheel, 70mm Acufab Throttle Body,MAC cold fender mount induction, K&N, 3 core radiator, flex-lite-fan, custom hardened push-

10-25-2001, 10:52 PM	#25
D&R Stang Guest Posts: n/a	IT'S ALIVE!!!! well sort of. I was under the car again replacing the fuel filter. I noticed that the line that comes out of the filter and connects to the steel line that runs up to the motor had a worn spot in it where it had rubbed against another line. I put the new filter in and the car coughed a few times then started. During the short time that it ran, I went around to the back of the car (still jacked up in the air) and looked under it at that worn spot on the line. It was slowly leaking which probably was letting air into the lines which combined with an old fuel filter wouldn't let the car start. Shortly after I saw this, the car died. I'll get another line and replace it and I'm sure that will fix this problem. I didn't see this earlier because the hole wasn't visible until I disconnected the line from the filter. PKRWUD: Thanks for all of your help and hopefully this will be the end of this problem for me. Dave [This message has been edited by D&R Stang (edited 10-25-2001).]