my gsr wont rev past 4.5k rpms which is the first stage vtec, and there is no torque at all. anyone had similar problem? what can it be?

 

sounds like the ECU is in limp mode.

 

what is that and how do you fix it? its not throwing any codes

 

unpluge your ecu for a couple of minuets and then replug it

 

Have you tried to pull the stored codes? Does your CEL work?

 

tried a different ecu and no luck. no codes either.

 

anyone? bump. totay it got even worse, it wouldnt rev past 1.5k. and the car would not go up hill so i had to have my bro tow me

 

What ECU are you running (include the OBD).

Pull the plugs and examine them for color.
Check cam timing.
Check ignition timing.

Does the car idle normally?

 

it idles fine, but barely revs. im starting to think its a fuel problem.

 

do you have to take out the fuel tank to take out the pump?

 

I would be measuring the fuel pressure before I even considered pulling the fuel pump. Have you changed the fuel filter recently?

 

yea just changed the fuel filter today. the car idles fine but doesnt rev

 

Dude answer the F ing questions. You sound like an idiot. Listen to dogginator and i bet your problems will be fixed. If you don't give info, people cant help you.

 

Hey, im havin the same problem with my LS, (OBD1) it bogs at 3 Grand, and hits rev limiter in all gears... it starts rough, but idles at 1100, 900 or 600 rpms. i tried a new ecu and still did the same thing. it runs pretty rich. i've heard 02 sensor and map sensor but i really dont know whats wrong. let me know what i can do thanx

 

p72 obd1 ecu

 

i had a problem where i couldnt make it up hills. found it my spark plug wires were mixed up. and it was misfiring.

 

I fixed mine yesterday, what i did was take the throttle body off and clean it, cleaned some sensors(let me know if you want some pics of were there at) and made sure the plug wires were in the right order, which they were, i then looked in the plugs to make sure that it would "suction" down to the spark plug, but one of the plug wires (the metal peace inside) was pushed in to far where it wouldnt reach the spark plug.
I dont think cleaning the sensors did to much, but buy new plug wires, and spark plugs and see what happens.

 

yea i just changed the wires like 1 month ago and the plugs like 3 months ago so i dont think thats the problem. if you could get me the pics of the sensors that be great! thanks

 

bump?

 

Im not sure if cleaning these helped, but my mechanic told me to do it anyways. i also cleaned the throttle body.
then today i was going to check the distributer cap and rotor, and the guy explained that the rotor puts a type of "film" on the the connecters inside the cap that u can just scratch off. so try that to and make sure that ur rotor isn't warped or anything.


it might work it might not, so let me know. peace

 

After cleaning everything, it ran fine for a few days and then it started rough and the cel would come on constently. I'm not sure why its starting rough. would there be somethin lese with the distributer.?