Crappy running TPI Engine...also, need stock runners

[peter paul fenske]

Hi Scott et al

Sounds like the Maf gone to me.. Could be a faulty burnoff
relay too. Definitely should set a code.

I once defeated all the internal Maf checks just to see what
happens and actually had gasoline dripping outa the tail pipe..

Try disconnecting the MAF. Actually some of the
cars run quite nicely with the maf disconnected.
This will put the ecm into a default alph n mode
calculating air mass from tps and rpm

later:peter

At 06:52 PM 5/26/98 -0700, you wrote:
>lkurek at smtpgate.anl.gov wrote:
>
>> any advice appreciated:
>
>Learn some nicer language?
>
> 
>> Engine runs REAL rough, hardly idles, and pressing the throttle WOT
>> yields an engine that takes about a MINUTE to rev up. Exhaust VERY
>> rich (makes your eyes tear), 
>
>Ok, how is your engine temp sensor?  Do you have a scan tool?  What does
>it read?  If it thinks the engine is very cold, it will make it quite
>rich. 
>
>What does you MAF read?  Does it run better if the MAF is unhooked?
>
>> ...and all eight are clicking away nicely. This is the interesting 
>> part....when I pull the injector harnesses off, I have THREE cylinders
>> that seem to be affected...#1, #2, #8. All five other ones made no 
>> difference if the injector was hooked up or not. 
>
>I suppose that they could be bad fouled by now.  Pull out the plugs
>and take a look.
>
>> Since this is a batch fire system (left/right banks), it isn't like I 
>> have a burned driver in the ECM.
>
>No, you don't have a burned driver, as all eight would not fire.  There
>is only one driver in your ECM.  Yes, two banks, but connected to one 
>driver...
>
>Scot Sealander    Sealand at clarityconnect.com
>
>
>