mazEK

Hey guys please help a playa out. I now have a check engine light and my vtec will not engage. My motor is revving at 2000 rpm's and am not sure of the problem. What should i check out or clean for this matter. Its bugging the heck outta me i had my car in the shop they could not figure out the problem at all so please help. Could it be my ecu is blown or my whole vtec steup what is it? Also my motor idles at 2000rpm's so if this helps in a little diagnoses please let me know

Hybrid-Fusion

First things first. Check your codes!

mazEK

my ctr ecu wont give codes so i have to hook up my p30 ecu and what from there there was no check engine light until i replaced my tps sensor long story short my car was bogging the tps was bad and now the tps is replaced and now there is a check engine light and no vtec

simplyrob

iac valve for the revving? vss for no vtec? try cleaning the vss maybe.

Tzarinque

my car throws nonsense codes out all the time, usually related to intake issues. It runs fine though, so i don't worry about it. Open you fuse box(near battery) and pull out the 7.5 Amp fuse on the top of the fuse box. Let this out for about 15-30 seconds, then plug it back in. When the CEL comes on on OBD2 cars they go into limp-mode which only runs at 80% efficiency. If the CEL comes back on, get it to autozone. They will check the code for free.

BlackBeastEK

check your sensors, might be you inverted the map sensor plug with the tps one there the same im prety sure happen to me before

guttedEF

Yeh sounds like a MAP sensor issue to me. hard to say without checking the codes though. Why haven't you checked them?

mazEK

will try thanks

_Bug_

I know this might sound silly but have you checked you oil? If your oil levels aren't right vtec will not work propery.

Syndacate

The reason it sounds like VTEC isn't engaging is b/c his car's in limp mode.

You said it only rev's to 2000k?

If it's in limp mode, VTEC won't engage, it doesn't have anything to do with VTEC directly if it's in limp mode...

You g2 figure out why it's in limp mode..

mazEK

Problem solved sorda -- thank god ---
I just toook out my ctr ecu bought a jumper harness and picked up a p30 it now idles fine and bbbaahhhhh----- vtec--------- is hittin hard @ 5500

But there is still a check engine light so i guess its time to get the codes and figure out why thats on.

hbcrazy88

i was going to say check your oil. you might just need an oil change. you have to build the right oil psi befor vtec will engage.