Alright heres the problem at partial throttle sometimes my car will hesitate and stumble a bit the whole car just sort of jerks and hesitates. Also when you come to a stop the RPM's drop real low and then sometimes the car will just cut off. The only "real" known problems with my car is my clutch that is cooked. Can anyone give me any suggestions as to what might be causing this? Thanks for your help!

 

What MAF do you have?
What's your vacuum pressure at idle normally?
What Fuel Management do you have?

 

Have you check your ECU for CEL?

 

If your clutch is cooked, check and see if there are clutch pieces stuck to your timing sensor on the bellhousing, possibly effecting the driveablitly of the car.
It's held on by (1) 10mm bolt and is magnetic.

-matt

 

thanks so much for the help guys. Vac at idle is around 18, stock MAF. Fuel set up is a walbro in tank fuel pump, AEM FPR and the stock FMU disc. I do not have a CEL unless the code is "hidden" in the ECU.

Yes the clutch is cooked, it is actually causing my starter to not work also. Well that is my theory because when I pull the starter out it is covered in all this black crap that smells like burnt clutch. I've never heard of this timing sensor. Can you try and tell me where it is exactly? Is this something I can clean and then reinstall?

Thanks again

 

look at the front of the motor to the bottom right of the front engine mount (when facing the car). where the bell housing meets the engine is where this sensor sits, attached to the rightside of the upper oil pan. its harness comes down vertically and attaches to it from its underside. disconnect the harness, remove the single 10mm bolt, and pull the sensor out. you will likely see many metal shavings stuck to its magnet tip - get all of those shavings off. the way the sensor works is by reading the distance between the teeth in the flywheel (through changing magnetic fields) and relaying this information back to the ecu to calculate the degrees of timing. if you have shavings on the sensor then they can interrupt this magnetic field and change the voltage given by the sensor which can throw your timing off and lead to undesired performance.

 

wow, thanks. I'll give it a try after work, I'll let you know what happens.

 

Nice troubleshooting densetsu...hadn't thought of that - but it makes sense.

 

Hey ian, I siad the same thing

 

Haha - yes you did.