I have a 92 TA with 5.0tpi. I saw somewhere that the tps should be set at .70. Is this correct? I had to enlarge the bolt hole to get it that high.

------------------
92 1LE Trans Am
5.0 Liter, 5 speed
SLP Headers
Dynomax Cat-back
SLP Cold Air, Chip
SFC, Strut Tower Brace

 

thats way too high you will set off a ses code.. .62vdc is the highest , i believe

 

IIRC the SD computers zero out the TPS reading. I've read conflicting posts as to what year this really started, but they all agree the SD cars had the zeroing out feature, I think they came with the non-adjusting TPS sensors (no slots).

 

MrJ wrote this at Thirdgen.

The .54V ideal setting is for the MAF cars. The ideal SD TPI setting is approx. .70V, as the SD TPI TPS is different than the MAF version. It's non-adjustable from the factory, but the screw holes can be enlarged to allow adjustment. Just throwing this out there...

Where did these numbers come from? The car seems to run the same. But I'd like to have the tps set correctly.

I'm going to reply to this over also, just in case MrJ isn't here.

 

I AM here... and it's true. The stock value is .71, I believe. Don't listen to the MAF guys.

------------------
91 Trans Am WS6
5.0 TPI auto
Flowmaster 3" 2 chamber catback
Trans Go shiftkit
2000 stall converter

supposed 'peanut cammed' car (yeah, right)

MoreMoodThatMod

 

My stock setting is 0.64v

------------------
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

All speed density computers, 1990 thru 1992, can set the TPS any where between 0.4v to 0.9v as stated in service manual. The larger the voltage, the longer the injectors pulse on for a richer mixture.

 

Could a richer mixture cause a higher idle speed or a slight hesitation? I'm at .70v rightr now. I'll try lowering as far as possible tonight.