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P0300, high idle,

Originally Posted by Sidz I didn't take off the intake manifold. I want to go over everything myself when I get it back. There's multiple places you can get a

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Old 04-24-2013, 09:22 AM   #14 (permalink)
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Quote:
Originally Posted by Sidz View Post
I didn't take off the intake manifold.
I want to go over everything myself when I get it back.
There's multiple places you can get a vacuum leak without removing the manifold.

The symptoms you're getting are strongly indicative of either

A: A sensor failure somewhere in the closed-loop system.
- MAF sensor
- Primary O2 Sensor
- MAP sensor (unlikely)

B: Vacuum Leak

C: Horrific exhaust leak at the header/head interface...very unlikely. You'd hear/smell/see it immediately. And you'd probably catch something on fire eventually hahaha.
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