Need Help Rb25det Keeps Cutting Out Driving Or Idling.

[boostn_25]

Hey guys and girls, having trouble with my rb25det, problem only stated happening last week, motor cuts out on me, and won't start back up until a 5-10 minute rest, temps only getting to 81 degrees, I thought it may have been a fuel issue, so replaced with a brand new walbro 255 fuel pump (same as old one except bran spanker) didn't sort it out, keeps doing same thing replaced CAS sensor and igniter and still same

Effect nothing.. I plugged computer into my ecu (haltech) and it's showing no fault codes.. Comp tested it 150-155psi across all 6, oil is only 2 months old (Penrite 10 tenths racing) and still looks good on the dipstick, has pretty much brand new splitfire coilpacks with new plugs in before it got its tune 3 months ago.any help would be great. Cheers

Edited May 16, 2016 by boostn_25

[boostn_25]

Sorry forgot to mention don't run a afm use map sensor through the haltech.

[admS15]

Since you have a haltech. Do a data log while its running until it cuts out, then check over the data and see if it shows what changed just before the cut out. That's where I would start since you have already covered the obvious items.

[boostn_25]

I'll have to plug it back in tomorrow and log it then, I'm hoping nothing to major, motors only been in it for 4 months [emoji19] does everything just fine, still hits boost hard, idles just fine, no smoke out exhaust etc, just doing my head in [emoji107]