Low power 5.0 TPI

Programmer nwester at eidnet.org
Tue Oct 31 01:09:22 GMT 2000


Hmmm...have to get into this code....there was a hack on
ECM guys' site, right ??
Lyndon.
-----Original Message-----
From: rr <RRauscher at nni.com>
To: gmecm at diy-efi.org <gmecm at diy-efi.org>
Date: October 30, 2000 2:30 PM
Subject: Re: Low power 5.0 TPI


>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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