Scotto6591

I've got a 1994 Toyota pickup 22re 4x4 with a fresh rebuild. The problem I'm having is that it idle perfect but once you give it some throttle to rev it up it starts to choke out. It has cel code 52 knock sensor. I've so far have changed the ecu and afm with no change. Has anyone ran into this problem before and no how to fix it ??

voiddweller

Fresh rebuild as in the whole engine?

Vacuum leak? If so I'd double check everything went back where it belonged

Scotto6591

Doesn't seem to have any leaks and I've triple checked everything went back as it should

Scotto6591

Bump...

Janos01

This does sound like a vacuum leak. Are all air hoses from the MAF to the intake snug?

Scotto6591

Has a



intake battery swap only has a90 seams to be on tight

Janos01

mmm, might be your AM intake or the MAF might be dirty.

Scotto6591

I swapped out the afm and it still did the same thing

Scotto6591

Checked for leaks today didn't find any, checked the cat and tps everything is fine not sure what else it could be

scope103

Have you given any attention to this? I always thought of diagnosis codes as my truck's way of explaining to me "what's wrong."

For starters, code 52 doesn't have anything to do with the VAF or vacuum leaks.

What code 52 SHOULD do is dramatically retard the timing. While you might have other stuff going on, you're never going to get it run in more than "limp mode" with the code.

The MOST common cause of code 52 is a bad "pigtail" from the knock sensor itself a short distance to another connector. Was that replaced in the rebuild? (It should have been.)

Scotto6591

Yup went to check the wire and it pulled right out of the pigtail. Does anyone know where I can get a new one?

Scotto6591

Where can I get a knock sensor pigtail for a 1994 22re?

Scotto6591

So I replaced the knock sensor and wire, no check engine light anymore but it's still doing the same thing. Any suggestions on what it could be?