Idle and issue at low revs

Geekay · May 4, 2021, 5:24pm

Veekay:

AJ16 you say?
Yes

When was the last time you cleaned your throttle body?
It’s been a while. Time flies by. I’m guessing 20k or more.
How are the coils and plugs?
I’m going to check later today.
Where are you idling at? Is it a nice consistent idle. Does the needle move at all when engine is hot, at a stop light? You’d have to watch for about 60 seconds.
She idles at around 650-700. I don’t believe it moves around at red lights but I haven’t been driving it. It seems to have suddenly got undriveable in the last few days. Its parked.

Could be the crank position sensor as well.
I have changed the CPS.

Also the EGR.
I cleaned it several months ago.
Lastly a vacuum leak. I had one at the intake manifold, and it seemed very difficult for mechanics to find.
I’ll check vacuum system.

This engine is so stingy with codes…
Yes

While I’m doing these things I need to test fuel pressure. I opened up a separate thread on building a tester. I’d like to get the parts for that so I do not lose too much time.