Car Trouble Bnr32 1990

[omnigear]

Attached is the Nistune Log fresh this morning along with the items that the dealer have changed. My Car studder and shivers between 1k-2k rpm no matter what gear it is. The problem partially went away after they changed the items like gasket , maf,o2 sensor, and seals. But it still happens and I cant pinpoint the problem, last time the car was serviced it took them two weeks before getting my car back. It is my daily and I cant really afford that long down time >_< . This just happens in that rpm range >_< usually happens when the car is cold and even when the operating temp is reach it still happens , but not as much.

[Matt]

Cannot really see much without you including the wideband data in the log or tune file

I'm just seeing about 2-2.5ms injection time around the low area but nothing which shows a problem yet

[omnigear]

I dont have a wb hooked up, and it is the stock tune from the nistune board. Im just trying to figure out what is causing it , because even the chipped tune ecu i have this problem is happening. the wb is on the way from 14point

[Matt]

Sorry not something I can diagnose without being at the car and checking
- AFR mixtures
- Leaks
- MAF
- Fuel pressure
etc

[STATUS]

wideband wont help its got a physical issue not tune related if it does it wil both ecus

[omnigear]

I know its a hardware issue >_< , im seeking help with that small log I posted. Its after about 5min of warming up and a nice and easy drive heading to the main road.

wideband wont help its got a physical issue not tune related if it does it wil both ecus

[skylinegtrhr]

Don't know 100% for RB but if it would be SR I'll try know good CAS ... they usually give some "stupid" errors

[Matt]

Nothing in that log will tell us what is wrong with the vehicle. It seems to look fine from the usual critical sensor inputs (RPM, MAF and temperature)

[tyndago]

Check for a vacuum leak. Use carb cleaner or the like. Spray around the injectors and TB at idle. Listen for a rise in RPM.

Otherwise the stock MAF can be finicky.