DIY LTCC or similar system for LT1s

[spfautsch]

If you have the time you can command open loop and turn on the evap. Watch for map drop. If it drops a healthy 4-5 points than a evap patch is on high priority list.

Had a chance to start it and let it idle up to temp yesterday afternoon. Unfortunately didn't really see a pronounced relationship between the evap solenoid and MAP, just the IAC counts dropping.



Apparently the evap solenoid can be commanded in open loop (using steveo's v4.91). I didn't notice until just now but mine went incredibly lean when switched to open loop (wideband also reading 1.16-1.20 lambda - 1.20 being 5v / max lean). I imagine this is because I extrapolated my injector flow targeting E0 fuel but am currently running a fresh tank of E10. Whatever the case, I only turned off the evap solenoid after I let it go back to closed loop and noticed the IAC count was still very low. The two dips in IAC afterwards coincided with the ccp solenoid being commanded on / off with eehack.