stupid lean under any throttle/load log inside

[mchustle]

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Here ya go.

Thank you very much. I'll let you all know how it goes this afternoon.

Get the car to idle at a safe AFR, and then switch off each injector one at a time on the Misc tab in Link. If the injector is working, you'll definitely notice it when you switch it off. If you switch one off and there is no change, then that injector isn't working.

If you find one that appears to not be working, swap it with one in another cylinder to verify the problem moves with the injector. If it does, it's the injector; if it stays with the same cylinder, it's in the ECU, resistor pack, or harness.

My guess is the injectors are working, although they may not be flowing what they should. If one is stuck completely shut, the idle would be pretty rough.

Ok so I just turned the injectors off 1 by 1 and all of them you can really tell a difference except cylinder 2. when I turn it off the idle will stay pretty much the same, not a drastic difference like the rest, but my wb will read leaner. Im waiting for the bay to cool down now so I can switch the injector with another one. Does this sound like it may be the problem?

Ok false alarm on the injectors I switched them and could not replicate what it was doing. I guess I was just imagining things .

For testing purposes I scaled my global down to -39.5%, ~744cc, still couldn't get it to richen up, still lean with throttle . I didn't get a chance to check fuel flow but I will try to tomorrow. I also threw in that be table and it didn't change much. I am able to set the global to pretty much anything and make my comb fuel trim to 0+-1. I don't know if this is a normal thing or not?

 

[mchustle]

Ok update time. I found a local place to clean and flow test my injectors. Took them down there and a day and $45 later I had them back. I've been working so much I haven't had time to mess with it. I got a few free minutes just now and popped the injectors back in. Didn't have time to mess with the tune but took it for a quick spin and super rich at all times. From the looks of it it seems like that fixed the problem I will know for sure tomorrow after I mess with the tune.

When the shop flow texted them at ~43 psi the ran around 72cc or something but I don't know what kind of setting if that makes any since. Something about they flowed this at 600 something and something else at 2500 something? Anybody have a clue what these random 600 and 2500 mean?

 

[Calan]

They should have given you a flow data sheet after cleaning and testing them. It will explain what each one flowed and what conditions they were tested under.

 

[mchustle]

They should have given you a flow data sheet after cleaning and testing them. It will explain what each one flowed and what conditions they were tested under.

They did it just didn't make any sense to me it listed the injectors down the side then up top it said 600 2500 5000 under the 600 the all said 21-23cc and under the 2500 they all said 74-76cc so I'm just confused at what tha t mean exactly. I'm going to try to fix the tune in a couple hours so everyone cross their fingers please.

 

[mchustle]

False alarm problem is still there, but I've found that when it leans out if I go wot it will start to richen back up. I'm at a loss injectors checked out good, fuel flow seems good. Anyone have anymore ideas? Could this be a problem with the Cas or anything else somehow?

I'm so close to posting a part out ad it's not even funny.

 

[Calan]

Post a new log with the cleaned injectors. Nice steady 3rd gear pull from 2.5k to redline, if you can do it safely.

 

[mchustle]

Post a new log with the cleaned injectors. Nice steady 3rd gear pull from 2.5k to redline, if you can do it safely.

Ok tomorrow I will. It's just weird as soon as it hits around 3k it falls on its face and is lean then if I wot it will slowly richen up and start to pull again. Check back tomorrow evening if you have time and ill try to have a log up.

I'm also going to run a ground from the battery in my trunk to the fuel pump rewire relay and the fuel pump ground. The other wire on the pump harness is obviously the ground correct?