tps volts good but runs better unplugged

[scott240sx]

Ok today while trying to fix my car me and my friend just started playing with the timing and tps. With the tps off we finally got my car to rev all the way to redline where as it stopped at about 4k before. But when we reconned the tps it acted just like before. My car has ran this bad since I put it in sometime in April. The voltage on the tps is perfect. I traced the wires to the ecu and they came up good. What in the world is wrong? This is driving everone I know crazy. We just can't get it fixed. I have replaced the maf, all coilpacks, ignitor, tps, ecu, cas, double checked wiring.

[spider_slayer]

checked the ecu for any codes?? i'm not sure though if you have replaced all of that though......

hawt wheels btw.

also, you wouldn't have happened to use caliper paint on the z brakes would you?

[scott240sx]

all i get is code 55

[spider_slayer]

is your idle ok?

[scott240sx]

oh yea i did use caliper paint they looked pretty bad before.

[spider_slayer]

powercoating ftw. everything else is pretty clean though.

edit: also did you try replacing everyhing all at once or did you replace parts one at a time?

[scott240sx]

it did idle bad before the new ecu but after it ran better and after today even better. but there is still a little skip

[scott240sx]

never mind on running good unplugged it wont idle unplugged it but has reved past 4k with it unplugged and not plugged. also it wont stay running if the aac is unplugged is that normal?

[vutony]

so the timing is set at fsm?? have u try adjustin ur aicv (idle controller) or do a vac test for leaks

[Kenrik]

You need a lip!

nice car though hope you get it worked out

[scott240sx]

lol i can't do the lip, my friend just got a green one just like mine and he is getting a lip, we have to have some things different so we don't have twins

[spider_slayer]

i was thinking a vac leak as well....but i don't think that would keep him from reving past 4k...

[scott240sx]

also i forgot to mention that when talking to vutony he said to clean my aac. Ill see what that does and hopefully fix my hard starting issue too.

[I ask good questions]

lol i can't do the lip, my friend just got a green one just like mine and he is getting a lip, we have to have some things different so we don't have twins

Hey, its fair game if you get the lip before nick does... plus you have had a green kouki longer than him... hes just jealous lol...

[scott240sx]

I just cleaned the aac and my car idles so much worse. I took off the whole intake manifold and cleaned it also. At first the car sounded like a lawnmower but it must have been the carb cleaner because it cleared up. Now the car idles up and down. Moving the idle screw doesn't do anything now. I didn't lose any parts and I hooked up everything. Could the aac be bad. It just sucks that this piece is over 200 dollars.

[scott240sx]

never mind i drove the car for a while and it cleared up. it will idle smooth again. still won't rev past 4k I tried doing some research but couldn't find out what will cause the engine to stall out when you unplugg the tps

[sultennok]

Hi there.. First post here..

I got an 180SX with SR20DET engine in it.. EXACTLY the same problem.. car wont rev past around 4500rpm.. But will rev past that with the TPS unplugged.. discovered that too when unplugging it for timing.. I changed MAF and coils. checked the ECU for faults. 55 no faults found.. ITS driving me CRAZY.. i even have trouble finding anyone else that have 6 wires out their TPS... everybody got three.. i got 6.. so don even know how to get a new one! this sucks

anybody that can help??

[sultennok]

Come... Get back to this thread and tell me what you found... Cant be true that everytime people discover their faults on their cars they forget to return to the topic and tell us others what the problem was!!! COME ON!