1 Lean Cylinder

[Houmack]

I have an SR20DET, and cylinder 1 is running much leaner than the rest. I have pulled the plugs and the plug on Cylinder 1 is much leaner than the others... MUCH MUCH leaner.

I have eliminated the problem being the injector by swapping it to another cylinder and seeing no change.

Quick backround on setup:

SR20DET - builtT3/T04E 50 trim topmount72# MSD top mount255 walbroMicrotech LT10-s

[AHall]

How do you know it is leaner? My car my be having the same problem. I have a 93 240sx and have noticed over the past several months that the engine seems to be running off of less then four cylinders when I start the car up. It runs really rough and when I give it gas it is like the acceleration is muted. Then after 2 - 5 minutes it runs fine. It is like something is sticking.

Did you find the solution?