broncbob

I had a great link to this, and it's not working any more. Does any one have a link to a how to for these things?

blue_CA_yota

http://www.4crawler.com/4x4/CheapTricks/TPS/index.shtml

I used my haynes manual, it is in the Fuel and Air section.

I was just working on this an hour ago on my 22re
a few things I noticed.

1. this was very frustrating
2. the bottom screw on the TPS is VERY difficult to reach. I used a Z shaped #2 phillips screw driver
3. small aligator clips and an analog multimeter will become your best friend
4. the absolute smallest amount of rotation on the tps makes a big difference.. so much that my results were getting thrown out of spec while tightening the top screw down.
4b. I tightened the bottom screw really tight, because it was hard to reach, and then with a loose top screw I was able to make very fine adjustments.
5. my tps was dirty, cleaning and adjustment made a HUGE difference.

As for idle adjustment, there is a large flat screw pointing upwards right near the opening of the throttle body, adjust it to spec (which is on a sticker on the underside of your hood)..

broncbob

Thanks! That's the link I was after!

I'm not sure if I still have the sticker on the underside of my hood? I'll have to look when I get home tonight.

How did you clean your TPS? The outside and the connections on mine are clean, should I remove it and clean the whole thing? I was just into the upper manifold, and it as well as the throttle body had a Metric poo ton of carbon on them. It took two cans of throttle body cleaner to get the throttle body clean. The upper intake took a lot of work with brushes and a pressure washer to get it clean. I think the EGR passage was plugged up tight on it!

Thanks for your time! You Yota folks are a nice bunch!

blue_CA_yota

I'm not trying to thread jack you here, but I've got some issues still with my tps.

My resistance between IDL and E2 isn't right

gap _________________ terminal _________ resistance

0.57mm (0.0224") ________ IDL - E2 _________ < 2.3K
0.85mm (0.0335") ________ IDL - E2 _________Open / Infinite

when the throttle is 0.57 my resistance is less than 2.3 K ohm, more specifically it is 0.1 Kohm

at 0.85 mm it is only slightly higher than this value.. throughout the full range of motion i never hit infinite resistance.. Is the resistance supposed to read infinite from 0.85mm to full throttle?

My truck only struggles under load at low RPM.. I'm 99% sure my TPS is giving me the headache, i got it wet yestreday.. and the truck runs better without it connected..

blue_CA_yota

I figured it out!! I was testing for the wrong values between terminals.. I was trying to set VTA - E2 to the values in the post before..

I'm gonna get a beer, and fix my error.. This is the last time I try to fix something without a beer..

blue_CA_yota

one more thing

broncbob, if you have the 22re motor, idle speed is 750rpm.. I set mine slightly higher to stop my interior plastics from rattling..