New Injectors dumping fuel, P0202

[fleebag]

Trying to tune new TT setup with new 127lb injectors.
Only driven a couple times trying to log and #2,3 and 8 are dumping fuel bad. Had to drain oil etc and still won't run. I was able to get the P0202, 0203 and 0208 codes.

All fuses and such look fine but not sure where to look next.

Thanks in advance

[christianchevell]

best advice: tow it to a professional tuner mechanic that does ls engines all the time. I myself go to Tommy Wong at Wongs performance engineering in Vancouver, your in Texas with lots of performance shops and manufacturers...I would never attempt to tune my self with HP tuning being inexperienced I go to a pro with hundreds of library saved tunes, GM hard and software and load bearing Mustang dyno.....$$$$$ oh and a couple old electrical engineering degrees and a shop with a months long waiting list..... yours could be a fairly quick fix for a experienced pro but tuning...$550, a little mechanical work..maybe parts..dont know your set up if you Zl1 pump, twin or three pumps, BAP or what.....

[Avenging Orange]

Originally Posted by christianchevell

best advice: tow it to a professional tuner mechanic that does ls engines all the time. I myself go to Tommy Wong at Wongs performance engineering in Vancouver, your in Texas with lots of performance shops and manufacturers...I would never attempt to tune my self with HP tuning being inexperienced I go to a pro with hundreds of library saved tunes, GM hard and software and load bearing Mustang dyno.....$$$$$ oh and a couple old electrical engineering degrees and a shop with a months long waiting list..... yours could be a fairly quick fix for a experienced pro but tuning...$550, a little mechanical work..maybe parts..dont know your set up if you Zl1 pump, twin or three pumps, BAP or what.....

[Batmanntexas]

Personally, I'd pull those injectors and bench test them, but I have all of the stuff needed to do that whereas you may not. But, if you do, then give that a shot. There could be some debris that got in them, preventing them from closing off, or they could just be faulty injectors.

You could also look on YouTube for a DIY fuel injector cleaning. IT uses a few pieces of rubber hose, carb cleaner, and a 9V battery.

Hope you get it solved.

-Scott

[hammdo]

Originally Posted by christianchevell

best advice: tow it to a professional tuner mechanic that does ls engines all the time. I myself go to Tommy Wong at Wongs performance engineering in Vancouver, your in Texas with lots of performance shops and manufacturers...I would never attempt to tune my self with HP tuning being inexperienced I go to a pro with hundreds of library saved tunes, GM hard and software and load bearing Mustang dyno.....$$$$$ oh and a couple old electrical engineering degrees and a shop with a months long waiting list..... yours could be a fairly quick fix for a experienced pro but tuning...$550, a little mechanical work..maybe parts..dont know your set up if you Zl1 pump, twin or three pumps, BAP or what.....

Agree. Did you input the injector data via hp tuners? I’d let someone who has done these types of tunes do the tune, even if it’s a remote startup tune.. safe vs sorry...

-Don

[fleebag]

Originally Posted by hammdo

Agree. Did you input the injector data via hp tuners? I’d let someone who has done these types of tunes do the tune, even if it’s a remote startup tune.. safe vs sorry...

-Don

Thanks for the replies, let me rephrase my statement, it's not my tune but I merely uploaded the tune like many times before. I don't think its the tune, as they are a main vendor here. And whom I used on my Maggie setup.

I think I have an injector issue and or wiring?
I tested the injector harness plugs today and while cranking, 2/3/8 all solid lit. While the others never made the light come on while cranking.
My assumption now is maybe not injectors but some place prior? Like power supply to them?
Last week I was doing logs with the tuner and last log I barely made it home. This is when this started dumping fuel.

I use HPtuners, is there a way in that to test the ecu/pcm etc for this? Or is it just the dtc section.

Once again thanks for the feedback.

[fleebag]

Ok I may be getting close, I found the passenger side o2 harness melted to the collector lol

My guess is it shorted going back to ecu or pcm whichever it goes to I dunno. Still need to look over the rest of the wiring for more heated wires.

[christianchevell]

Well yes that would have shorted some stuff and make it a challenge I would not have to deal with. replace the connector and keep it safely lashed away.....bet your problems disappear mostly..............