transam001

iTrader: (3)

When I start my car the tps says it's at 100 percent. As the car warms up it will start going down and will eventually read right. It's a Holley tb not sure what this could be

transam001

iTrader: (3)

It's a 410 ci turbo car. I'm running Holley computer system as well

LilJayV10

iTrader: (39)

That's one thing I've not ran into on a Holley. All the normal things I would suggest checking, wouldn't explain it eventually working it's way down to zero.

Does it do it every time you start it? What brand of TPS sensor.

I'm surprised it actually runs if it thinks the TPS is 100% on start up. I thought it shuts the injector off above 70% or something like that.

Can you post a log and tune?

transam001

iTrader: (3)

Yeah it does it every time I start it. The car still needs a dyno tune but don't run to bad. It's a oem tps sensor

LilJayV10

iTrader: (39)

Post a log.

91 Z28

iTrader: (3)

Verify the pin out on the Holley harness. Also check how tight/loose the harness connector is