According to the ems on initial acceleration it runs lean (18-19) for a couple seconds. If I go to around 50 percent throttle after a couple seconds, it goes rich to around 9.5-10. I think that it would be unnecessary to push it at any further than that, because I don't feel like washing the cylinders. Would this be an injector issue, or something else. I do not feel that it is the tune, as it was working great before this lean/rich problem. I replaced the o2 sensor to be sure it wasn't that. Spark plugs look perfect. One more thing is that the idle is hunting pretty badly (usually 200 to 300 rpm each way). Should I send out the injectors to be serviced (RC550's...)? Or would a better investment be to purchase ID1000's. I am putting my car in storage in a couple weeks, and it's not going anywhere until this is fixed. Sorry about the rant. Any ideas?

Josh

 

Were the RC's used when you got them? How many miles do they have? Cleaning injectors is a pretty cheap insurance. And during the cleaning process, if there is a bad injector they will see it when they perform the balancing/bench test. So your actually killing two birds with one stone. Otherwise you run the risk of investing $$$ on new injectors which may have still been good.

 

Yea they were on the car when I purchased it. So I actually have no idea how many miles are on them. If I had to guess it would be around 30k and maybe years ago. I heard they were crap injectors and it would be a smart investment to get a better quality injector. It's 300 more to get quality replacements. I would like to run more boost in the future too Is it pretty easy to pull these injectors? Any idea on what parts I would need to take them out and put back in? I know there are some crush washers or o rings that I need to replace. Anything else?