Re: RE: California PCM flash/Throttle position question

From: Got-Speed \(Marty\) (Got-Speed@cox.net)
Date: Wed Jul 31 2002 - 19:18:26 EDT


If my PCM has never been flashed would it be worthwile to flash it at the
dealer ?
And what does it cost ? BTW - Bernd, can you still provide the pinouts for
the OBDII cable ??

Marty
http://members.cox.net/got-speed

""Bernd D. Ratsch"" <bernd@texas.net> wrote in message
news:000f01c238ea$866628e0$090aa8c0@homenet.com...
>
> There's an update to the "updated" flash in CA (and other states). The
> original flash took out some timing that caused the engine to
> perform...well...much worse than one would like.
>
> You can, however, alter the TPS voltage slightly (set it to .7v at
> Key-ON/Engine-OFF). This will help out on the initial and overall
> min/max TPS setting.
>
> - Bernd
>
> -----Original Message-----
> From: owner-dakota-truck@dakota-truck.net
> [mailto:owner-dakota-truck@dakota-truck.net] On Behalf Of J McKinney
> Sent: Wednesday, July 31, 2002 4:24 PM
> To: dakota-truck@dakota-truck.net
> Subject: DML: California PCM flash/Throttle position question
>
>
>
> Hey guys,
>
> Had my truck dynoed and I was a little disappointed, but during I found
> some things that aren't normal. While on the dyno we hooked the truck
> up to an OBDII program and at wide open throttle the computer showed
> that the throttle body was only 74% open. I checked voltages at the
> throttle postion sensor and it showed only 3.8 VDC. It should be 4.8
> VDC. I was wondering if anybody else had ever checked their voltages at
> wide open throttle.
>
> Also, I am unfortunate enough to live in CA and I had to have my PCM
> re-flashed by the dealer a couple years ago for some emissions TSM and
> ever since then my truck has been noticeably less powerful. Wondering
> if you guys had any info on this TSM or if it had anything to do with
> the low voltage readings on my throttle position sensor.
>
> The truck is a 98 4x4 5.2 5-spd.
>
> =====
> John
> Fillmore, CA
> 1998 Dakota 4x4 5in lift/locked 33" Pro Comps
> 1974 Ramcharger 4in lift/locked 33" BFG MT's
>
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>
>



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