wont pass 2k rpm?

[ill cuhz]

ive got an 89t. problem is when i drive it, it wont go pass 2000 rpm. im not sure what it is. i was told it can possible be the tps, cps, or afm. anyone know how i can diagnose the problem and fix it? any help is much appreciated. thank you

 

[supraguy@aol]

Are there any fault codes indicated?
Make sure that the electrical connector to the AFM is secure.

 

[IndigoMKII]

Normally if it's the afm unplugged, it won't rev at all.

I'd say check the TPS and timing of the engine.

 

[supraguy@aol]

True, but i was actually able to drive mine without an afm, albeit at low rpm.
But yes- timing/ tps is a good place to start.

 

[ill cuhz]

Are there any fault codes indicated?
Make sure that the electrical connector to the AFM is secure.

will check that today and get back at you. appreciate it tho

 

[ill cuhz]

Normally if it's the afm unplugged, it won't rev at all.

I'd say check the TPS and timing of the engine.

thanks alot bro will do.

 

[ill cuhz]

True, but i was actually able to drive mine without an afm, albeit at low rpm.
But yes- timing/ tps is a good place to start.

will do bro, checking that now. thank you

 

[IndigoMKII]

True, but i was actually able to drive mine without an afm, albeit at low rpm.

Bit off topic but really? I can unplug my afm and barely get it to rev over 1k.

 

[ill cuhz]

Bit off topic but really? I can unplug my afm and barely get it to rev over 1k.

yea actually i drove mine unplugged by accident and my car was able to go a little over 1500. but back to the problem. how would i go about diagnosing the tps. i tried to replace with my older motor from an pre89 but the spin on it if u were to say was different if not opposite? or should i even be replacing it? the engine thats in the car right now came from a auto trans supra. i wouldnt think it would cause a problem or would it?

 

[super51fan]

Have you checked for codes yet? That should be first step.

 

[ill cuhz]

Are there any fault codes indicated?
Make sure that the electrical connector to the AFM is secure.

yupp checked it and they were all connected properly

 

[ill cuhz]

i checked and all it does is blink repetatively with no gaps. i cant pass 60 and i was jus like uhhh?? why am i counting so much haha

 

[ill cuhz]

counted*

 

[ill cuhz]

Have you checked for codes yet? That should be first step.

i just did and it just kept on blinking without gaps. i already counted pass 50 then i was like the fuck?? any idea what that is? it happened to me once but never looked up on it

 

[ill cuhz]

i just did and it just kept on blinking without gaps. i already counted pass 50 then i was like the fuck?? any idea what that is? it happened to me once but never looked up on it

nvm actually didnt turn the car on lol

 

[ill cuhz]

Are there any fault codes indicated?
Make sure that the electrical connector to the AFM is secure.

the only code it throws is 41 for tps.

 

[ill cuhz]

True, but i was actually able to drive mine without an afm, albeit at low rpm.
But yes- timing/ tps is a good place to start.

how would i go about fixing the tps, i tried to replace it with an older one from a pre89 but the spin on it was different.

 

[IndigoMKII]

Pre 89 and post 89 are two different animals. Try getting one for your specific year and installing it then calibrating it.

 

[ill cuhz]

Pre 89 and post 89 are two different animals. Try getting one for your specific year and installing it then calibrating it.

cool thanks bro, would it throw it off having a diff tps, because the engine i swapped in was from a 91 turbo with the original tps nd my car is a 89 turbo so would that create a problem? and by calibrating it i do that by actually adjusting the tps itself when screwed on twisted left or right? and one more question, the car idles just a little over 1k, probaly around 1100. when i give it some gas or throttle it kinda hesitates and almost dies out for a sec then comes back. and when the rpms drop after revving it, it almost seems to die out, and at times it may die out. is this also a problem due to the tps?

 

[IndigoMKII]

can be