my TPS only goes to 4.3 volts at WOT.(glad I finally got a scanner)and thats with my floor mat out,was 4.15 with it,and thats really leaning on the petal like I don't think I should have to.At what voltage does the ECM see full throttle??and where can I find a list of where all my values should be??

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89 FORMULA 350,WS6 SUSPENSION,HOTCHKIS STB,KONI REDS,WONDERBAR,SLP REAR CONTROL ARMS/PANHARD,POLY BUSHINGS,FRESH 355 MOTOR,TCI 12" STREETFIGHTER,TRANSGO SHIFT KIT,3.70 GEARS,FLOWMASTER EXHAUAST,SLP 1 3/4 HEADERS,NO CATS,58 MM BBK,MINIRAM INTAKE,COLD AIR,ALL FREE MODS

 

There is a table in the eprom that you can set at what %TPS the engine goes into Power Enrichment (the ECM's term for WOT).

This %TPS varies over various RPMs but for most cars, the ECM is in PE/WOT @ 70% TPS.

I personally like setting the %TPS to engage PE a little lower. Depending on the RPM range, I engage PE from 65% (lower rpm) to 45% (higher rpm).

Right now, your TPS sounds about normal. Don't believe this BS that you need 4.5+ volts to engage PE. It just isn't true. It's completely conrolled in the eprom and if you want to change it, that is the place.

 

thankyou,but where can I find what my other values should be?how much knock before timing retard?MAF readings etc,,,,,

 

The factory specs call for .54@idle and 4.49@wot with a =or- .07volts.

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D&Z Performance
"Putting Power to the Pavement"