tps

94snake · 01-15-2004, 11:33 AM

i have a 5.0L cobra and i recently put a new intake cam and throttle body on it and it runs great at idle but when im driving down the road and i hit the clutch in the throttle seems to stick around 1200 to 1400 rpm...i checked the tps on the throttle body..seems to be right ...any help? thanx

fiveohpatrol · 01-15-2004, 05:57 PM

this process works great for me everytime, hopefully it works for you too
http://www.corral.net/tech/maintenance/idlereset.html

GhettoPop · 01-15-2004, 11:47 PM

worked for me too

Dog5ohfun · 01-16-2004, 01:48 AM

The best way to try to fix this problem is to check the TPS voltage with the car off key on. With the butterfly closed the voltage should be at .99 volts. At wide open throttle the voltage should be no higher than 4.5 volts. Also make sure the cable is not kinked anywhere. How long have you had the new throttle body on? It can get sticky from the oil coming in through the valve cover breather from the fill cap. You may also want to get the air idle bypass plate that allows you to correct your idle without messing with the idle stop screw and TPS. Good luck I hope this helps a little.

94snake · 01-16-2004, 10:28 AM

thanx ill try that!

jonnyk · 01-17-2004, 11:04 AM

It says do not exceed 1.0 volts but really it should read 0.96V. Once you hit 0.96V the ECU thinks the engine is now under load, so you really want the TPS showing 0.9-0.95 at idle.
I personally would not fudge with the TPS...try and get the idle set with the throttle blade set screw. Use the TPS adjustment as a last resort.

01-15-2004, 11:33 AM	#1
94snake Registered Member Join Date: Nov 2002 Location: Panama City Fl. Posts: 152	tps i have a 5.0L cobra and i recently put a new intake cam and throttle body on it and it runs great at idle but when im driving down the road and i hit the clutch in the throttle seems to stick around 1200 to 1400 rpm...i checked the tps on the throttle body..seems to be right ...any help? thanx

01-15-2004, 05:57 PM	#2
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	this process works great for me everytime, hopefully it works for you too http://www.corral.net/tech/maintenance/idlereset.html __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

01-15-2004, 11:47 PM	#3
GhettoPop Gimme a Drink! Join Date: Dec 2002 Location: NYC Posts: 694	worked for me too __________________ 1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong!

01-16-2004, 01:48 AM	#4
Dog5ohfun Registered Member Join Date: Feb 2002 Location: Arlington, Washington Posts: 92	The best way to try to fix this problem is to check the TPS voltage with the car off key on. With the butterfly closed the voltage should be at .99 volts. At wide open throttle the voltage should be no higher than 4.5 volts. Also make sure the cable is not kinked anywhere. How long have you had the new throttle body on? It can get sticky from the oil coming in through the valve cover breather from the fill cap. You may also want to get the air idle bypass plate that allows you to correct your idle without messing with the idle stop screw and TPS. Good luck I hope this helps a little. __________________ Black 1990 LX DSS Racing Super Pro Bullit 331, AFR 185, Anderson B31 Cam, 1.6 DSS rockers, Cobra Intake w/ 2 phenolic spacer, Aluminum DS, 3.73 gears, Tremec 3550, Lakewood SFI Bellhousing, MSD Digital 6+, Spintech Side Exhaust,

01-17-2004, 11:04 AM	#6
jonnyk Being stroked is great Join Date: Oct 1998 Location: Alberta, Canada Posts: 772	It says do not exceed 1.0 volts but really it should read 0.96V. Once you hit 0.96V the ECU thinks the engine is now under load, so you really want the TPS showing 0.9-0.95 at idle. I personally would not fudge with the TPS...try and get the idle set with the throttle blade set screw. Use the TPS adjustment as a last resort. __________________ Novi 2000 now spinning off the snout of the 331... Mods Pics

01-16-2004, 10:28 AM	#5
94snake Registered Member Join Date: Nov 2002 Location: Panama City Fl. Posts: 152	thanx ill try that!