Hi guys, just joined yotatech. I Have a problem that i just can;t get straight. I have delt a whole lot (last ten years and more then thirty rigs) with toyota 22r's. About a third of them efi. I'm really wanting to say i have run into this problem before but cant for the life of me remember what the solution was. I'm building an 85 for my brother, stole all the efi out of an 87 and installed it in the 85. Complete wiring harness (everything was swapped over). The trucks starts up just fine, idles fine and once the rpm's are up it seems to run fine. But when your trying to give it gas (espicially from idle) it falls on its face and bogs itself out. if you play with the throttle you can get past it. It spits back through the intake from time to time also. Any ideas please?? we just put the lift and tires and rims on it today and hes excited to get it going. If you need any other info just let me know. thanks A Lot.

 

Check the TPS, if its bad or out of adjustment it will cause the problems your having. Also replace the fuel filter if it hasn`t been done in a while.

 

back fire through the intake sounds a lot like timing way out of time! theres a thread just started on timing. search -timing-

 

I put a new filter on it and swapped the tps three times (used ones, just to be sure) and adjusted all of them.??

 

Got the timing down

 

did you do it by jumping the pins to get the right timing?

 

here is his posting...

 

Yes I did

 

The timing is def not off

 

Have you checked for vacuum leaks ?, especially between the AFM and the Throttle body ?.

 

There's one thing. I do away with all my vacuum lines (mostly) did on my 85 truck and 85 4runner. I just copied my trucks block offs and it runs fine, but this is an 87? But no leaks

 

you have a crack in the intake tubing. check the elbow right before the throttle body.

 

It was taped up, took a good one and put it on there and no change