tps sensor

[elipsekid]

ok heres my problem not to long ago i got code 22 so i replaced my tps sensor and havent really run the truck since
its probably been about 2-3 weeks since i replaced it
today i started the sy and check engine light was on right away so i shut it off and checked the codes i got code 22 again
does anyone know whats wrong or have any suggestions as to what it could be
TIA
chris

 

[TYRODD]

Maybe a dirty TB, this can cause all kinds of problems.

 

[mattw]

I had the return wire from the tps wear through or something on the blazer... I ran a temp wire from the tps sensor to the ecm bypassing the original wire and the problem went away.. I later put the temp wire in the wire loom soldered it up and haven't had any problems since.

You can check your original wire for continuity with a volt ohm meter.. Also make sure its not shorted out to ground or anything..

Good luck..

-Matt

 

[turbodog]

Ditto. Had TPS wire go open somewhere in the harness, likely somewhere behind the pass side cyl head. Paralleled a new wire and problem solved.

 

[elipsekid]

ok i probably sound like a moron but i dont wanna screw anything up
so...how do i run this wire and were (starting and finishing)
thanks

 

[turbodog]

Connect to the dark blue and gray wires at the TPS connector. Route new wires down to grommet where ECU wires go thru the firewall (easy if pass side tire is off, fenderwell is out). Remove cosmetic panels below dash and remove the ECU. Pull ECM, ECMB fuses. Disconnect the larger of the 2 connectors from the ECU. Use a pair of needle nose pliers to poke thru the grommet, grab a wire and pull it into the pass compartment. Connect new wires (you did keep track of which is which, right?) to the dark blue at connector contact C13 and connect the other new wire to the gray wire at connector contact C9. (these designations are molded into the connector, plus there will only be one wire each of the correct colors in that connector).

Reinstall ECU, fuses, cosmetic panels, fenderwell and tire.

Shouldn't take too long. I did it in less than 40 minutes at Nats last year. Started when we got to the track, finished in time to make multiple time trials passes (thanx to folks who let me borrow electrical diagrams).