- Jan 31, 2012
- Reaction score
- Tempe, AZ/SOUTHSIDE, IL.
Please step in and lend a hand here, I'm closing on wit's end and unsurprisingly, the Skittle boards are as "Helpful" as ever.
As said, skittle forums are of NO help, which is unsurprising, as I'm not asking how to rattle-can my OEM wheels, or how to install seven parallel turbo timers.I'd like to start off by stating that my car's prior owners were electrical hacks of unparallelled stupidity. Also, excuse the rambling. I've been awake thirty hours.
That said, I'm having a rash of issues the last week that I'd love some extra grey matter thinking on. Car began developing an intermittent, seemingly lean condition, primarily upon clutch disengaged, decel. Directly following, it began dying with no forewarning. Come to a stop, goes momentarily full-lean and shuts off before being allowed to be restarted.
At this point, I limp it to my grandfathers, whereupon it completely dies. Would crank, but not run. Fully assuming it's the ASD causing trouble, I swap it's relay with one tested good (horn) and try cranking it. It roars to life and remains happily idling for some ten minutes. At this point, I try to pull out and drive it home to my garage for a further look- Only to have it again completely die some twenty feet away.
Checked the fuses (none blown), again looked over the relays, looked over my grounds (Rad Support, Head, Bellhousing, and one or two other of my own creation), the Wally primes occasionally, everything seems mostly fine at surface level. Pulling the stored DTCs yields: "P0685- ASD relay control circuit" and
"P0688- ASD relay sense circuit low" and it still again will not run. I have the pile of sh*t towed home and call it quits for the night.
The next day, at home following a PCM reset, I pull codes again: "P0508- IAC valve sense circuit low", "P0522- oil pressure sensor low" and "P0243- WG solenoid circuit". The car has a new Oil Switch, that admittedly has not worked properly since installation. As for the WG code, the OE wires were not attached to a Resistor upon installation of my Boost Box several weeks back, as it did not come included. At this juncture, I again cut 12v by flipping my breaker and go back to work. The car has as said, proven to carry some interesting electrical work, so I immediately pulled the underhood junction box to assess the condition of the ASD sockets and all wiring. Everything checked out. I also checked and cleaned the PCM connectors, grounds, ensured that the Noise Suppression cap hadn't found a way to short itself, examined the engine harness connector on the bulkhead, re-tested or swapped fuses and relays and started the car. It again ran fine for several minutes, also drove normally until I went WOT, whereupon it lost fuel (Bogged, AFRs pegged lean) and died. Another ten minutes of poking the relays and it again started, idled and drove passably back the two blocks home. Another PCM reset via breaker, and it yielded only the WG DTC.
On a whim, I now went and purchased a new relay and replaced the original ASD with it. The car again started, idled, cruised and went WOT fine. But upon a clutch released (unloaded) decel, from ONLY fifth gear, again momentarily stumbles and goes lean, before either dying or richening out, pendent upon throttle application.
I cannot find any truly worthwhile threads searching repeatedly for information, any help or suggestions would be greatly appreciated. I will also have my DMM back in my possession today, which should help immensely.
-DSIntune tuned, e85.
-1.5k mile Wally 255, BNF.
-3 Bar MAP sensors.
-etc, etc, etc.