Car has driveability problem

CSH-HQ nacelp at jvlnet.com
Thu Aug 12 03:48:36 GMT 1999


Big changes in IAV, movments, A to 5 Spd
Bruce

>    I had these same problems when I changed over an A4 car to 5-speed. The
>VSS and cold start problems were related for me. I had diconnected the Gear
>Selector input (orange wire with black tracer in console) and ignored it.
>The solution is to connect Gear selector input to ground (black with white
>tracer in console) or wire it correctly. This will tell the ECM that the car
>is in park at startup. There is something in the calibration that affects
>startup using this input. The side effects of leaving it in "park" all the
>time are: 1) No EGR 2)not as much engine braking.
>    Most MAF problems I have seen are from someone messing around with the
>min air adjustment or TPS adjustment. Check the FAQ at www.thirdgen.com for
>the procedure to set min air and IAC reset. Good Luck
>Jon
>
>
>-----Original Message-----
>From: CSH-HQ <nacelp at jvlnet.com>
>To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
>Date: Wednesday, August 11, 1999 1:38 PM
>Subject: Re: Car has driveability problem
>
>
>>It's listed in the achives.  Don't have it here. Also, if burning try some
>>of the options
>>Bruce
>>>
>>> Hey all...I have been following the list for months now, but I am
>>>now in need of suggestions from the wealth of information out ther now.
>>>
>>> I have an 86 Camaro w/ 89 Camaro 5.7LTPI (Basch MAF type).  The
>>>prom is set up for an A4, but I now am running a 96 T-56 six speed manual.
>>>As far as I could tell (over the last couple of months) there has been
>>>really no problem with the setup, but lately some problems, perhaps
>>>unrelated, have come up.
>>>
>>> The engine, especially when cold, will tend to choke, stagger,
>>>stall at low RPM, and I have had a hard time getting it to idle properly
>>>when first starting in the morning.
>>>
>>> The only codes I have gotten (both intermittent) are code 33 (MAF
>>>low) and code 24 (VSS).  I can't pinpoint anything, so I was wondering if
>>>anyone has insight into this....perhaps suggestions on improving the setup
>>>with a proper BIN?
>>>
>>> Any help is appreciated.
>>>
>>> Thanks,
>>>
>>> Dan Kunnath
>>> '86 Camaro IROC / 5.7L / M6
>>>
>>>
>>
>




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