I am having a hard time figuring out how to readjust my tps. I have done searches and cannot find exact directions for my throttle. 3.0 6 cyl 91 4runner. Please help as I am idling tween 100and 300 rpm slow at idle in park/neutral and in gear. Btw I went to a new cat, cherrybomb turbo 2 and 2.25 pipe. -200$ parts and labor Much nicer sound and flow. I usually hit a half tank mark with around 100-120 miles depending on conditions I hit 130 with mixed conditions. with old plugs. I just changed them and found no probs with the plug condition. Whew! also how do you adjust the little plunger valve thing:pat: that stops the throttle at let off? thanks I have searched ...

 

wow when I searched, I found dozens of threads (a couple per week) with valuable tps adjustment instructions and tips for the 3vze... like this one:
https://www.yotatech.com/forums/show...&highlight=tps

also, check out the link in post #7

 

http://www.4crawler.com/4x4/CheapTri...l#Introduction

This is the link that worked for me. I used the adjustment advise at the very end. Good luck.

 

http://www.4crawler.com/4x4/CheapTri...l#Introduction

I used the adjustment advice at the end and it worked really well. My resistance reading was higher than 2.3k but it still worked.

 

I just installed a new TPS in my 94 3.0 truck. I couldn't get the exact values in ohms as in the 4crawler link. I instead went with the factory service manual instruction of no continuity with 80mm feeler and continuity with 50mm feeler with multimeter connected as described. My idle doesn't change when I jump the diagnostic terminals with engine running, but the timing does changes approx. 3 degrees with terminal jumped/not jumped. It is timed dead on at 10 deg. jumped at idle and runs smooth. Any thoughts?

 

Any thoughts on this guys?

 

I had to go off the service manual too because I couldnt get the <200 reading.. it was either continuity or no continuity. Thought it was my multimeter so I bought a nice one. No difference in readings. My 3.0 behaves the same as yours-

 

Thanks for the reply MRunner, I guess it's adjusted as it should be everything seems fine otherwise, same with yours? I went back and tried adjusting again, same result, I gave up and figured it's about as good as it's going to get. I had the same problem with old TPS, which is why I bought a new one, money down the drain!

 

yeah, exact same thing here... new TPS, then multimeter. Mine seems fine, just the idle doesnt change when the diag. terminals are jumped.

 

As long as everything else is in check I guess we're good. Thanks man.