Having a small issue with my 92 sc300 5 speed. The car on first start takes 2-3 trys before turning over then when it does it idles real low and shaky.When I rev it at around 3000 rpm the car feels like it has no power.When driving and I get to 3000 rpm the car starts to stutter and when I come to a stop the idle drops.Feels like the car is struggling to stay alive. What I have done to it so far:

New tps
Replaced ecu 3 times
Replaced maf
12v fuel mod

All with the same outcome.Im tired of throwing parts and money at it so any help would be appreciated!

 

Is the CEL on?

 

Did you try adjusting the TPS after you put it in?

 

cel not on but when checking (jumpping e1 and te1)it just blinks with no pauses on all ecus. edit:after looking online people say this just means no stored codes.

been doing it by hand but dont have the specs on setting it.Found the specs for the gte but not for ge motor.

 

Have you checked Spark ??? Perhaps the coil is not working properly.

 

how would I go about testing the coil?

 

Ive messed with it on and off all day. Earlier I started the car with the maf plugged in and then with the car still running unplugged it and went for a spin. To my amaze the car had all its power back and on problem was idle had a slight bounce at stop. When I turned the car off, let it set for a while and went to restart the car would die with the maf unplugged. I plugged it back in and had to repeat the process of unplugging while running again to drive the car with normal power. When the maf is not plugged in the cel does not come on even after driving 10-20 mile down the road.

This mean the used maf I bought is bad or the ecu is bad or ??????

This car will be the death of me I swear!

 

Any other suggestions before I go spend $300 on a new maf

 

See if a friend will let you barrow the maf or ecu ? this way you don't spend the money on something that isn't the problem

GoodLuck I know It can be realy stressfull

 

Dont know anyone local with an sc or ls i can borrow on from sadly.