Newley installed ca18det running extremely rich

Discuss topics related to the CA18DE and CA18DET series engines.
TannerLDR
Posts: 49
Joined: Thu Jun 05, 2008 7:34 am
Car: 92 Vert
Location: CO

Post

As said above.... I started it for the first time a few days ago. It starts very easily and all but while running there is gas literally spraying from the exhaust manifold gasket area, around cylinder #1. It also is spraying from the downpipe (no exhaust connected). It will rev all the way up, but at lower rpm's it seems hesitant and spuddery.

Ive double checked Maf and O2 sensor wiring and all seems good. Searching didnt quite help for my problem at all. Injector plugs, plugged in wrong??

Any input would be great as to why i'm running this rich!!


User avatar
Nali
Posts: 2484
Joined: Thu Feb 07, 2008 10:53 am
Car: Datsun Nissan 280ZX

Post

For one i would get those gaskets fixed.

Could be any one of a plethora of issues causing your car to run rich.

FPR is dead, dieing or sleepingBov is stuck open at lower rev points.Injectors stuck openVacuum / boost leak

Also, without an exhaust connected isnt your o2 going to be reading false values. i.e high oxygen values.

Without a lot more info, and some more trouble shooting, we can really help you.

TannerLDR
Posts: 49
Joined: Thu Jun 05, 2008 7:34 am
Car: 92 Vert
Location: CO

Post

Nali wrote:For one i would get those gaskets fixed.

Could be any one of a plethora of issues causing your car to run rich.

FPR is dead, dieing or sleepingBov is stuck open at lower rev points.Injectors stuck openVacuum / boost leak

Also, without an exhaust connected isnt your o2 going to be reading false values. i.e high oxygen values.

Without a lot more info, and some more trouble shooting, we can really help you.
Lets see, to start=

FPR is good, and holding steady pressure 30-35psi about.As of now, I'm running no BOV (i know, i need one soon!)--It could be a boost leak, but would that affect things at idle? the gas is spraying at idle the worst.--With a stuck open injector, would i loose pressure while the engine is not running? My Fuel pressure stays constant always.



Return to “CA18DE / CA18DET Forum”