I know that with my Predator hand held tuner, one of the things they mention is to have all the doors closed and not to have any accessories on in the car while writing to the PCM. It can cause problems like you've stated.
I know that with my Predator hand held tuner, one of the things they mention is to have all the doors closed and not to have any accessories on in the car while writing to the PCM. It can cause problems like you've stated.
After flashing in V1.8 I get "reduced engine power" which I can not clear. I find that if you disconnect pos battery terminal and short it to the neg terminal>> hook it back up and all is good again.
Is this the same problem?
2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
PowrMax Performance
100 mm PowrMAF
LM-2 EFILIve package with TAQ -sLM2 V-2 serial cable> Package deals
Before you start the tuner, after turning on the key, count to 15. After it completes the flash count to 15 before turning off the key. Works for me.Originally Posted by Bruce Melton
2003 red vert
Mods:
LS7 crate engine, wet sump, 24xx reluctor
LPE 100mm MAF
Vararam, cold air intake and bridge
RPM Level 6/4L60e trans
3.42 gears
Yank SS3600
1-7/8" AR headers
Z06 exhaust
470rwhp 437rwtq
1/8th mi-1.526-60'-6.862-1/8th-@100.74mph
I know I am good on the after part will try the before part.Originally Posted by jfpilla
Thanks,
Bruce
Update> it works much better but not entirely consistantly. Seems to like key off before closing Flashscan.
2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
PowrMax Performance
100 mm PowrMAF
LM-2 EFILIve package with TAQ -sLM2 V-2 serial cable> Package deals
I had similar problems after reading the stock tune last night.
Door closed when reading the PCM, completes the reading the stock tune, message says remove key from ignition for 15 seconds on my laptop. I do so. The car then starts to say Reduced power, Low voltage in my DIC. When I check for codes on my DIC there are a bunch. I tried clearing the codes on the DIC, with V5, V6 and V7 yet they all just pop back up as soon as I start the car. When I shut it back off take the key out, close the door and lock it the car continues to flash, "Reduced power, Low voltage". Very strange. I adjust my stock program save it, license the pcm and flash with the new program and the problem goes away.............
Strange that all these problems would occure just from reading the PCM.
07 Z06 2LZ LMB: Custom Grind Cam (231/247 114+3 653/660 LSL Lobes), American Racing Headers, Ported LS7 Intake, Halltech Killer Bee.
07 GMC Sierra: Borla, S&B Cold Air
Gone but not forgotten:
EB Z06 Vette: Borla, Halltech Stinger, Long tubes
2002 WS6 Stage 2 LS6 Heads, Cam, Longtubes, Etc.
1997 Z28 Heads, Cam, Stall, Long Tubes, Etc.
1994 Z28 Boltons
Glad to see I wasn't the only one now.
Didn't think we had the doors open, but we just opened and closed them since after the read, the door ajar light was on.
Anyway, I was able to use v7 to clear all codes. Worked just fine for me.
Thank god, or my boss would have killed me. Wounding his baby would not have been good
[quote="Nick 02 Z06"]I had similar problems after reading the stock tune last night.
Door closed when reading the PCM, completes the reading the stock tune, message says remove key from ignition for 15 seconds on my laptop. quote]
Try not turning of the key for 15 seconds after you get this message. I don't think the PCM is finished yet. With C5's you get 6 chimes after the message pops up and turning off the key before the chimes are done causes problems.
2003 red vert
Mods:
LS7 crate engine, wet sump, 24xx reluctor
LPE 100mm MAF
Vararam, cold air intake and bridge
RPM Level 6/4L60e trans
3.42 gears
Yank SS3600
1-7/8" AR headers
Z06 exhaust
470rwhp 437rwtq
1/8th mi-1.526-60'-6.862-1/8th-@100.74mph
Thanks, I'll try it!Originally Posted by jfpilla
07 Z06 2LZ LMB: Custom Grind Cam (231/247 114+3 653/660 LSL Lobes), American Racing Headers, Ported LS7 Intake, Halltech Killer Bee.
07 GMC Sierra: Borla, S&B Cold Air
Gone but not forgotten:
EB Z06 Vette: Borla, Halltech Stinger, Long tubes
2002 WS6 Stage 2 LS6 Heads, Cam, Longtubes, Etc.
1997 Z28 Heads, Cam, Stall, Long Tubes, Etc.
1994 Z28 Boltons
Ok, second time this has happened on the same car.
All doors closed ( learned from first time ), nothing running at all in the car.
Turned it on for 15 seconds and even confirmed with a watch ( owner was a bit worried after last time )
Pulled the PCM, and all appeared to be just fine.
Made the few changes with cags, a/f, rev limiter and spark.
Uploaded the new tune
ALL GAGES ON THE Z06 WERE DEAD
Everything.
The car started just fine, but nothing on the HUD or instrument panel worked. EFI was showing them all working, even weirder.
Fix:
1. put the original stock tune back on
still dead gages
2. receded all cables, opened and closed all doors, cleared all DTCs.
3. pulled the PCM again
4. uploaded the stock tune again
5. started the car, all was fine.
6. uploaded the original changed tune from above and everything was fine????
Whats with Z06s? Bad enough the owners are snobby, the pcms are too? jk
Seriously, this blew more then half the time we paid for at the dyno just trying to get this working again.
Good side was I got the z06 up to 425fwhp up from the 410 stock just with the 3 quick pulls we were able to do.