R33 rough idle, wont start now

[Stephens33]

R33 rough idle, wont start now

Hi guys

Having issues with an r33 gtst series 1.5 manual i bought a couple of weeks back as a bit of a project.

I bought it and when i did it had avery rough idle but could still rev it and whatnot it would stall whenever going into gear though

Since buying i noticed the oil smelt like fuel.. 

So i have 

New fuel, fuel filter, spark plugs, oil and filter, coilpacks 

Ive tried to run a diagnostic using the consultation plug but i dont get any engine light flashing to read and codes? I checked globe and its fine 

Also took cat off to make sure it wasnt a blocked cat

Occasionally it will start but idle is so low it seems like the cars not even on maybe runs 200rpm

Could my ecu be stuffed? What else should i try? 

 

Car is stock.

 

[KiwiRS4T]

Pull the fuel line off and see what comes out when you turn the key on. Your pump could be stuffed. Unplug the MAF and see if it starts.Make sure the plug is firmly and squarely in the ECU. Compression test. Actually put the compression test near the top.

 

[Stephens33]

Thanks kiwirs4t! 

I unplugged the maf and yep turned over straight away! 

Only problem now is it wont stay on when plugged back in? And diagnostics code is showing afm fault. I bought another 2nd hand afm and same problem?!

[turb33gtst]

Dirty maf can cause rough idle try to clean Maf with CRC MAF cleaner in case of a build up of dirt on wires in MAF

[KiwiRS4T]

check the maf plug connections