Low power 5.0 TPI

[rr]

No, it wasn't a clear flood mode. It was a code condition  whereas
the code felt something was wrong with the tps. I just looked for what
I have on it and can't find it.

I also remember Bruce was able to replicate the same thing on his
test bench. After a certain tps value (high), the ecm would go back
to closed loop/learn and reduce the bpw.

BobR.


Programmer wrote:

> Would you have a section of that code handy ? It's not for
> "clear flood mode" I hope <g>....
> Lyndon.
> -----Original Message-----
> From: rr <RRauscher at nni.com>
> To: gmecm at diy-efi.org <gmecm at diy-efi.org>
> Date: October 27, 2000 1:45 PM
> Subject: Re: Low power 5.0 TPI
>
> >
> >Actually, the tps reading looks high. There is something about the code
> when
> >the tps goes too high, it uses a substitute value and drops out of PE. A
> few
> >years back someone here ran into that with a Vette. Try setting the tps
> lower.
> >
> >The other thing to remember is that a TPI system starts to die about there.
> >Something 'bout them long runners.
> >
> >BobR.
> >
> >Programmer wrote:
> >
> >> Hi gurus,
> >> Got a weird one here I'm trying to help a performance shop on. Subject
> >> vehicle is an '88 5.0L TPI with 5 speed and 3.08 ratio--running an AKFU
> code
> >> '165 computer. This code was a one time vehicle Pontiac Firebird--the
> whole
> >> thing has been placed in an S10 truck. This thing falls flat after 4500
> RPM,
> >> MAF never goes above 175 g/s--pulls timing down to 12 BTDC (with no
> knock)
> >> and the shop swears this thing should pull like crazy with the internal
> >> engine mods. This thing has the Lingenfelter <sp> intake, TPI runners,
> >> etc...Dart heads, 10.5 CR, blah, blah. FP is good, TPS goes 4.7 WOT,
> however
> >> this truck is 12 hours away, so I can't personally test....any ideas ?
> >> Lyndon
> >>
> >>

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