2008 Pontiac Solstice GXP
gap is 0.035 to 0.030
OK so I picked up a better scanner and pulled these DTCs:Thanks KG!
I may take you up on that offer. Since i paid Trifecta, i do want to pursue it a little further with them before throwing in the towel and starting over first..
The low boost misfire was with the Trifecta tune loaded and before i changed the preload on the wastegate, both at their request.
Now that it is running the stock tune and the preload has changed, i am only getting minor sputtering at high boost. (I also feel like i am so slow) That is the feedback from them i just posted.
Apologies for the lack of clarity.
Now they want me to gap the plugs and pull another log. Willing to try anything. I am still stuck in my head on the issue pre-existing the new turbo but, happy to have it run without sputtering (mostly) as a good starting point.
I did send that info to Trifecta yesterday but I think they are closed in weekends.the IPC losing comms I wouldn't worry about. It's not unusual to see those kinds of hiccups so long as the module is still working.
It looks like ya picked up a decent scan tool that queries individual modules and reports what module is faulting.
I am fairly confident the low feedback voltage to that relay is what is causing your sputtering issue. I am honestly shocked that a full DTC scan of the vehicle is not done when you did the logging for Trifecta. You may want to send them an e-mail as they might know something we don't that could cause that problem other then the relay being toast.
Welp, swapped the relays, no differencethat's a splice pack. just where a butt load of wire all connect together.
what module did the U2107 code come from. the EBCM, TDM, RCDLR and IPC can generate that code.
relay 26 in your underhood fusebox is no good. you should be able to swap it for relay 51 which is the trunk opening relay. see if the sputter goes away.
that relay controls the upstream O2 sensor, wastegate solenoid, evap purge valve, all of your ignition coils.. plus a few other things. if it is clicking off you would most definitely get engine sputters and you would also get DTCs set for the engine running lean or rich.
You can spray them with contact cleaner after blow drying the connectors with compressed air, this will aid removing water. Then give it another once over with compressed air. If you have silicone/dielectric grease, apply a thin film of it with a needle into the connectors pins, this will not hamper contact and will prevent further corrosion...Just make sure they are really dry before reconnecting them