Ok. Took it to the dealership and the tech and I went through EVERYTHING. Every injector, the entire harness all the way to the ECM, the Boomslang/FIC harness and the ECM. ... They're (AEM) getting me a replacement for the 20 pin F/IC harness out so I can swap injector #3 over to injector channel #7 or #8. ...
Ok, well that didn't work. I swapped #3 injector over to #7 injector driver on the F/IC and nothing changed. Pending P0203 immediately on key on and latter P0203 and CEL.
I'm stumped. I'm taking my stock '97 back home tonight so this weekend I'll swap the entire harness into it and see if I still have the same problem on a different vehicle.
Can't figure it out. There's NOTHING apparently different between any of the six injectors and harness, but the code comes up only on injector #3. If it comes up on my other Sport, I'm really stumped cause that rules out wiring. At that point I guess its narrowed down to the ECM and something slightly wonky with injector driver #3 on both the first and second gen ECMs. <img src="/forums/images/graemlins/frown.gif" alt="" />
I am going to swap back to the 5.38 gears next week. The 4.90s are just not working out. <img src="/forums/images/graemlins/frown.gif" alt="" /> The 4.90s dump it into Open Loop WAY too often and its really affecting mileage. Three extended highway climbs and the altitude at the new house is just killing me. ...
Gears are going in right now as I type.
Gonna miss the 4.90s but they really screw with the ECM in unpleasant ways. <img src="/forums/images/graemlins/frown.gif" alt="" /> Can't run 1500+ lbs of extra weight and then decrease the gearing and not expect the ECM programming to have problems, I guess.
The good part - aside from the P0203 - is the F/IC is working great even though it wasn't ever intended for NA vehicle use. The only thing I REALLY WISH it did was read out or log timing AFTER the timing map has been applied. I've got so many spreadsheets to translate all the data now I can't keep track of them all. <img src="/forums/images/graemlins/zombie.gif" alt="" />
I wired in the Innovate SSI-4 and 1-BAR MAP last weekend only to find out that both of the MAP sensors sent (by two different companies, no less) are 3-BAR MAPs. Stupid. <img src="/forums/images/graemlins/angry.gif" alt="" /> <img src="/forums/images/graemlins/angry.gif" alt="" /> After spending most of Saturday figuring that out and correcting my wiring - when they say in the docs 'this is NOT A GROUND', I guess they mean it
- I find out that Palmer Performance doesn't actually support the SSI-4 in ScanXL. So, I STILL can't get MAP data into a useful tool.
I DID, however, learn that timing can be gathered by the SSI-4 - if I can figure out how to hook it up. Those are questions I need to ask in another thread.
What I need is an application that will log RPM, MAP and timing. ScanXL (OBD-II) gives me RPM and timing, but extrapolated MAP and that's not terribly accurate (more like not accurate at all). I was counting on getting MAP in through the SSI-4. <img src="/forums/images/graemlins/frown.gif" alt="" /> If I have to install two SSI-4s (timing before the F/IC and after) just to get this data I'm not going to be real happy. <img src="/forums/images/graemlins/frown.gif" alt="" />
If anyone has any idea how to do this I'm open to suggestions.
Edward
