Try checking the distibutor cap there might be a crack in it. Even thow you have new injectors it's possible that they are hanging up "not closing all the way". Allthow It is strange that cylinders 1 and 2 are both rich, I kinda of dought that it is your injectors.Are the plugs wet also?if so check plug wires, hope this helps some
I don't know if this will work for a '90. On my '93 the Engine Coolant Temp sensor connections corroded to the point that it lost connection, essentially telling the computer the engine was very cold and causing cold-start enrichment. Had the same symptoms you're describing and won't set a code because, well, to the computer it's an acceptable condition. The fix isn't the sensor, it's the connection. Give it a look, it's a quick and easy check.
Good luck
Good luck
Touring23 said:
This happened on my 85' SVO and this sensor is not easy to get to. I would try the easy stuff first like trying to wiggle the plug up and down a few times to help get a good conntact. I would also check the O2 sensor connection. I find it weird that you are running rich and no codes like a 42# or 21# to point you towards the cause of it