COS5 shuts the engine down after 3 seconds...help!
I'd appreciate any help that you can provide.
I had Jesse Bubb program a COS5 with tune (attached) to download into a 1999 Pontiac Firebird. I have EFI Live Commercial version.
When I flashed the complete operating system with tune into the Moates Road Runner, the car will start and idle smoothly for 3 seconds and shut down. It sets a DTC U1000 Class 2 Data Link Instrument Panel Cluster HC.
If I restart the car it does the same thing....idles smoothly for 3 seconds and shuts off.
Are you attempting to utilize the TPS VE table? If so, you will need to disable it and log the VE PID (don't recal the name off the top of my head), to populate the TPSVE map initially. Make sure you are using the native units when populating the TPSVE map.
The boys did a good job expaining the procedure in this (long) thread http://www.forum.efilive.com/showthread.php?t=2599
Originally Posted by TAQuickness
Not using TPSVE.
The DTC I posted has nothing to do with it also. I just reflashed my maf tune into the RR and it started right up with the same DTC present.
So you're running an SD tune with COS5 then?
What is the MAF fail limit set at? {C2903} is the parameter for that.
2hz 18 failures
Set the hz to 1, 1 failure.
The 18 failures is probably the problem. It'll take quite sometime to hit that... probably 18 starts/stalls.
Thanks for the tip!
Set the hz to 1, 1 failure.
The 18 failures is probably the problem. It'll take quite sometime to hit that... probably 18 starts/stalls.
Reset it to 1,1 and it still runs for 3 seconds and shuts down :(
Has the MAF DTC set yet?
Can you do a compare between that tune and your MAFLess tune that works and see if there is something horribly out of whack?
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