Code 51 issue (Somewhat)

[supraguy31]

Ok all, Here is something that Ive never seen before so Hopefully some of you FFIM people can Explain this.

Im running a Q45 throttle body with the Q45 TPS.

Now when the Car is Idling, My TPS voltage is .38 to .39v with a RPM range of 650-670. check for codes and no codes found. Now with the check connector in and I touch the gas ever so Slightly (800rpms) I immediately get a code 51 and it stays that way through any RPM range as long as Im touching the gas, Let off the gas and let the engine Idle (650 tp 670rpms) and the Code automatically goes away and I get the no codes flashing again.

Is this normal as Ive never checked this with the stock TPS. Still cant get the A/F to stop jumping around and Im hoping that this might be the cause and there is a Solution.

Thanks All
Robert

 

[jdub]

This is normal. The IDL part of the TPS is a switch that simply tells the ECU when the TB plate is full shut...code 51 is the indication when the TB plate is open or the AC button is on.

 

[supraguy31]

Ok, Thanks. Maybe all the Isses that Im having are fixed now.