cylinders 2 and 4 running rich :confused:
06-06-2008, 10:43 AM
#23
Supporting Vendor
iTrader: (5)
Join Date: Jun 2006
Location: Duluth, GA 30097
Posts: 803
Total Cats: 0
He's using RPM based AE, so don't turn that off.
He's NOT using EGO correction IIRC so it's disabled and the table isn't configured.
ASE is OK to have at 160, most cars still need some. It will decay and cut out completely over 30 seconds in the current config.
Yep, looks lean at idle. Yep no advance at idle. That stuff's changed since it was here.
Overboost appears to be at 220 kpa, he's boosting 14-15psi so that should be fine.
My suspicion was a short, or a problem with the injector driver. It was fine when it was here on the dyno-- but something's not right now... are you still in town man?
He's NOT using EGO correction IIRC so it's disabled and the table isn't configured.
ASE is OK to have at 160, most cars still need some. It will decay and cut out completely over 30 seconds in the current config.
Yep, looks lean at idle. Yep no advance at idle. That stuff's changed since it was here.
Overboost appears to be at 220 kpa, he's boosting 14-15psi so that should be fine.
My suspicion was a short, or a problem with the injector driver. It was fine when it was here on the dyno-- but something's not right now... are you still in town man?
__________________
Jerry a.k.a. 'FoundSoul'
DIYAutoTune.com
'91 Miata BEGi S3 GT2560 w/ MSPNP - 14.1psi - 253whp, 232wtq
'95 Miata n/a
A few other cars....
Jerry a.k.a. 'FoundSoul'
DIYAutoTune.com
'91 Miata BEGi S3 GT2560 w/ MSPNP - 14.1psi - 253whp, 232wtq
'95 Miata n/a
A few other cars....
Reply
0
0
06-06-2008, 09:12 PM
#24
Elite Member
Thread Starter
iTrader: (24)
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,537
Total Cats: 42
I admit I messed with the lower left cells in the fuel table and timing table since the dyno session, trying to get the car to idle right and not idle pig-rich. Of course, that didn't work, I replied to Matt's PM and I'm hoping we can work something out that doesn't involve too much downtime (for several reasons).
'Course, the msqs from the dyno are still saved, so I'll simply go back to them once the problem's solved.
Jerry - I'm in Augusta. If I could get some time next week, it might be beneficial to drive over (in the OTM.. 16 mpg in the Miata) if the MS can be diagnosed or exchanged in one day.
'Course, the msqs from the dyno are still saved, so I'll simply go back to them once the problem's solved.
Jerry - I'm in Augusta. If I could get some time next week, it might be beneficial to drive over (in the OTM.. 16 mpg in the Miata) if the MS can be diagnosed or exchanged in one day.
Reply
0
0
06-06-2008, 09:16 PM
#25
Elite Member
Thread Starter
iTrader: (24)
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,537
Total Cats: 42
The two in the first post are pretty typical presently.
Reply
0
0
06-09-2008, 07:45 PM
#26
I'd load the old msq, just to make SURE it's all ok. Might even reflash the code, though I doubt that's the issue.
Can you open the case? See how things look? You might run the car for a bit (or on the stim) firing everything, and see if anything gets hot. Touch the chips, if you burn your finger, something's wrong. :-)
Can you open the case? See how things look? You might run the car for a bit (or on the stim) firing everything, and see if anything gets hot. Touch the chips, if you burn your finger, something's wrong. :-)
Reply
0
0
06-11-2008, 06:10 PM
#28
Elite Member
Thread Starter
iTrader: (24)
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,537
Total Cats: 42
Matt ran it through the tests, the MS is working fine...
So now, I suppose it's time to de-loom my wiring harness and look for shorts.
And just because it can't hurt, I'll try reflashing the firmware too.
So now, I suppose it's time to de-loom my wiring harness and look for shorts.
And just because it can't hurt, I'll try reflashing the firmware too.
Reply
0
0
06-12-2008, 09:33 PM
#35
Elite Member
Thread Starter
iTrader: (24)
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,537
Total Cats: 42
I must've found it, all I really found was a couple shoddily taped up connections from my bipes uninstall. No more Subie idle, and AFRs are around 13.3-13.5 at idle. Cool!
Reply
0
0
06-13-2008, 08:00 PM
#39
Elite Member
Thread Starter
iTrader: (24)
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,537
Total Cats: 42
Thanks, I'm glad this wasn't like my last wiring issue, which took months to fix.
I'm kicking myself, however, for unwrapping all the wiring harness in the passenger side of the engine bay before thinking to look in the footwell..
..at least I got shiny newly-wrapped wiring harnesses out of the deal.
I'm kicking myself, however, for unwrapping all the wiring harness in the passenger side of the engine bay before thinking to look in the footwell..
..at least I got shiny newly-wrapped wiring harnesses out of the deal.
Reply
0
0
07-23-2008, 01:24 PM
#40
Elite Member
Thread Starter
iTrader: (24)
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,537
Total Cats: 42
Well, I thought I had this licked, silly me.
Pulled the plugs just now after running for a few days on the COPs, and the same symptoms are on the plugs, except now 2&4 look about right and 1&3 have a white looking ground strap. So same problem, but now leaner! It's not running rough like a boxer as it was before, or spewing black smoke from the tailpipe, but this is just as scary, or scarier since it's leaner. Hopefully I can get these pics up...
Could the injectors being grounded constantly like they were before have damaged them in some way? That's really all I can think of, if they were still stuck open I would certainly have the same boxer idle and black smoke (and constant >11:1 AFRs) as I had before. Should I try moving the injectors around and see if the problem follows them?
Pulled the plugs just now after running for a few days on the COPs, and the same symptoms are on the plugs, except now 2&4 look about right and 1&3 have a white looking ground strap. So same problem, but now leaner! It's not running rough like a boxer as it was before, or spewing black smoke from the tailpipe, but this is just as scary, or scarier since it's leaner. Hopefully I can get these pics up...
Could the injectors being grounded constantly like they were before have damaged them in some way? That's really all I can think of, if they were still stuck open I would certainly have the same boxer idle and black smoke (and constant >11:1 AFRs) as I had before. Should I try moving the injectors around and see if the problem follows them?
Reply
0
0
