s4 TII stalling... HELP!!!!
04-04-04, 05:53 PM
#1
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Location: massachusetts
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s4 TII stalling... HELP!!!!
i did searching but nothing really hit my problem on the head so i was forced to post this ?...
i just bought an 87 TII 114K. stock turbo, hks tmic, FCD.. stock injectors / ignition sys. it will run up to about 11lbs... the car drives perfect and the power is smooth up to redline, but when i come up to a stop the idle drops off and it stalls.. sluggish to start again. but then will drive fine... the previous owner thought that it was leaking secondary injectors. ive only had the car for a few days so i havent had much time to look at them tho... what other problems could cause this... a side note is the car sat for about 3 months before i bought it and the batt. needed a serious charge to get the car started the first time when i went to look at it but the alt is chrging fine... thanks for any help, ask for any more info
i just bought an 87 TII 114K. stock turbo, hks tmic, FCD.. stock injectors / ignition sys. it will run up to about 11lbs... the car drives perfect and the power is smooth up to redline, but when i come up to a stop the idle drops off and it stalls.. sluggish to start again. but then will drive fine... the previous owner thought that it was leaking secondary injectors. ive only had the car for a few days so i havent had much time to look at them tho... what other problems could cause this... a side note is the car sat for about 3 months before i bought it and the batt. needed a serious charge to get the car started the first time when i went to look at it but the alt is chrging fine... thanks for any help, ask for any more info
04-04-04, 06:07 PM
#2
Rotary Enthusiast
You might try adjusting the TPS, I had similar problems, on a stock setup and it made my idle MUCH better and prevented it from stalling out etc. Here is how to adjust it:
This was quoted from here:
https://www.rx7club.com/showthread.p...ht=setting+tps
Goodluck.
Originally posted by Aaron Cake
If you need 4 turns of the TPS screw to adjust things "properly", then there's something else seriously wrong. The proper procedure is below:
Adjusting the TPS is a simple maintenance item that should be preformed at any oil change. The benefits include better gas mileage, better performance and a smoother idle. Adjustment only takes a few minutes if you follow the directions below.
What You Need
· Ohmmeter
· Flathead Screwdriver
· Half an hour
How To Adjust
· Warm the car completely by driving for 20 minutes
· If your car is a turbo, remove the intercooler. Loosen the hose clamps on the inlet and outlet, remove the vacuum line, and then remove the four 10MM bolts. Lift off the cooler. Do this quickly so the car does not cool.
· Unplug the TPS. On 89+ cars, you want to unplug the connector leading from the lower TPS.
· Hold the TPS connector so the hump points up. Connect your meter between top connection and rightmost connection.
· Adjust the stop screw until the meter reads 1K (1000 Ohms)
· Plug the TPS back in
· If necessary, reinstall the intercooler. Don’t overtighten the hose clamps
· Drive the car for a few minutes, then repeat the procedure
If you need 4 turns of the TPS screw to adjust things "properly", then there's something else seriously wrong. The proper procedure is below:
Adjusting the TPS is a simple maintenance item that should be preformed at any oil change. The benefits include better gas mileage, better performance and a smoother idle. Adjustment only takes a few minutes if you follow the directions below.
What You Need
· Ohmmeter
· Flathead Screwdriver
· Half an hour
How To Adjust
· Warm the car completely by driving for 20 minutes
· If your car is a turbo, remove the intercooler. Loosen the hose clamps on the inlet and outlet, remove the vacuum line, and then remove the four 10MM bolts. Lift off the cooler. Do this quickly so the car does not cool.
· Unplug the TPS. On 89+ cars, you want to unplug the connector leading from the lower TPS.
· Hold the TPS connector so the hump points up. Connect your meter between top connection and rightmost connection.
· Adjust the stop screw until the meter reads 1K (1000 Ohms)
· Plug the TPS back in
· If necessary, reinstall the intercooler. Don’t overtighten the hose clamps
· Drive the car for a few minutes, then repeat the procedure
https://www.rx7club.com/showthread.p...ht=setting+tps
Goodluck.
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