2JZGE VVTi vacuum related idle issue

akifjanjua

New Member
Jun 9, 2010
3
0
0
Pakistan
Hi,

I have swapped a 2JZ-GE in my Jeep CJ5 :)

had a test drive.. the jeep runs fine.. however i see two issues.

The check engine is not wired up! so i dont see codes if any.. this needs to be done

1. The engine idle is too low when cold.. gets ok when warm.
2. The is a sure vacumm leak.. i could hear it.. saw a pipe in air near the brake booster connection.. I tried to plug that up to stop the vacuum leak but idle wont hold even when warm :(

what could be the issue? MAP sensor? IAC? i expect the engine to pull up RPM when cold and drop down when warm.. that doesnt seem to happen :S

Need clues to get this fixed.. will hookup the check engine to check codes

Regards
Akif Janjua