is there any difference setting tps with dmm or led lights?

 

Some people get slightly different results. Best way I think is to set it to 1V at the ECU.

 

The lights don't work, the ohmmeter does.

Just make sure the car is fully warm first so that the cold start thermowax/cam assembly is not holding open the throttle.

 

I personally have had much success with the light method, but whatever works!

 

If you're an idiot like me and don't have the cold start thermowax/cam assembly, does the car still have to be warm?

 

Actually, I use both. My primary method is by resistance. I set to 1K Ohm engine fully warmed up. Then I hook the twin lights up to see if I get a 1 light on condition. If I do, all is well. If I don't then I adjust until I do. Typically, the resistance is something different from 1 K Ohm but usually close. Then I always short the initial set connector (ground it if you're a S5) and adjust idle.

 

Nope.

 

Well that makes my life easier.

 

thanx