ledzepp2994

Hi all. 91 200TQ, I just redid the head gasket, T belt, Water pump ext, and a new set of 034 RS2 injectors. Got it all back together and after struggling to find a working battery I got it started. Buttoned up a coolant leak and a slight oil drip off the top of the turbo and ran. But, Its shaking more than I would like at low RPM. At 800-850 (idle) its not bad, if you hadn't driven the car before you would think it was normal. but at like 900-1000 it gets pretty bad, then it smooths out and everything seems fine. I haven't really run it besides in the driveway so far so not sure if it is still missing at higher rpm (new injectors were suppose to fix). Ideas or suggestions on where I should start looking/What it could be?

Thanks
Lucas

audi_marv

Crappy gas, dirty idle stabilizer (if you have one), lean mixture,
cold start valve on - then off after 10 secs., temp sensors going bad.

it may be all normal....and its just time for new motor mounts ?

dkarten

possibly a vacuum leak

yodasfro

What's the reason for the bigger injectors? Do you have RS2 software and the RS2 turbo? If no then you are likely over fueling the engine. Switch back to the stock injectors asap. It's also possible you have a bad plug wire> spark plug >or distributor cap/rotor.

ledzepp2994

Looks like number 2 is no sparking at least not all the time. Pulled plugs today after rechecking my timing. Number two was very black. swapped in a new plug same result. Just ordered a new set of wires, Got a spare rotor kicking around. As for the new injectors I plan on doing some other upgrades once I get back from work in mexico/VW bus road trip skiing in a two months. And as long as number 5 injector wasn't firing figured put them in now.

ledzepp2994

Still not running right. The number two plug looked oily new plug new wire and still running terribly. It just has no power, and shakes around quite a bit. I ran all the tests and pulled codes, pulled codes three times today and got three different results. one was a 2231, Idle issues, then I got a 2341 O2 issue then I tried a upgraded ECU out of another car and pulled no codes. each time i let it run and took it for a spin down the road and back floored it in third ect. waiting for the engine to cool right now to pull the plugs. Im getting a rich exhaust, leaving residue in the snow where I let it idle. Also large amounts of steam coming out of the crank case hose (making a replacement and need a fitting oops) so it is open to the air right now. still missing and even sounds like it might be backfiring. Ideas?

Thanks
Lucas