Timing way the heck off

[snailwagon]

Hey guys, I have a 1993 pickup in my Toyota collection with major timing issues, 22RE variety. I just drive this one back and forth to work, usually with the bed pretty loaded down. 210k miles on it, last time I checked the timing was about three years ago when I last changed plugs and wires. I set it at 7 degrees then.

I had to smog it (CA), and the tech told me my timing was at 30 degrees at idle and failed it even though emissions were very low. So I went home and threw the light on it, he was right. I can get it to 11 degrees before I run out of adjustment on the distributor, but then it barely runs and has no power at all. I didn't know the motor would run with the timing that bad.

At 30 degrees and about 900rpm idle it runs pretty good, but obviously is messed up. Do the 22R motors skip a tooth on the timing chain ever? I changed the timing chain about 70,000 miles ago ( four or so years).

Any suggestions on where to look? It is like the timing is a tooth off.

 

[2ndGenToyotaFan]

I'd check the timing chain. Sounds like you're off a tooth to me... I've heard of one or 2 jumping a tooth, but it's pretty rare... Pull the valve cover and let us know what you find.

 

[Hilux]

BTDC or Advanced?


My RTE would not time and I suspect a bad TPS. The thing was a good 20 degrees BTDC. And the closer it got to to 0 the worse it would run. Checked the timing, which is NOT fun a Turbo, about 10x. Other than removing the windshield in pieces, I haven't fooled with it to confirm though...


fawking thing... Christine II is right where I left the bitch.


I'd give her to the Navy if they promised to use her for bombing practice.

 

[Hilux]

I just about bet you, that even if the CEL is not on, you got a code...

I'd Te-E1 just to be on the safe side, and tell me I'm wrong.



Quotes are links.

I think I'll get a TPS from the dealer tommorow. Hopefully it will fix the problem.

Would a bad tps explain the timing being at 20-25 BTDC?

ok, back to my original problem.....


it will not time. T-E shorted, lets say it runs best at 30(3-0, thirty)deg BTDC. The closer I try and put it the worse off it gets till it stutters and stalls.

 

[snailwagon]

I'll pull codes and check the TPS, then see what lurks under the valve cover.

 

[x factor]

My 22r jumped a tooth a while back. You would know it because it wouldn't get out of it's own way after it happened. I also ended up with one slightly bent valve from it as well and had to get towed home. We were on our way to Flat Nasty for the first time and never made it to the park. I'm glad it happened on the road instead of on the trail.

 

[snailwagon]

So I pulled the valve cover and didn't see anything out of the norm.

No codes stored by the ecu either. Checked the TPS, it was way off. I tried getting the TPS within specs, using Roger Browns write up Toyota 22RE Throttle Position Sensor

. For the life of me I can't get the TPS to behave on the end of a multimeter, but I can get it tuned better than it was. Maybe it needs a cleaning? I don't know.

I think it is time to replace the TPS and then send this truck off to someone else.

 

[elblat]

I think it is time to replace the TPS

When mine wouldn't let me time the engine right it was just sticky, and not letting the idle switch close. I cleaned it up with some carb cleaner and it's been working ever since. Prolly worth a try.

With me, it was gunk in the spring side of the TPS, between the contacts and the throttle (didn't take apart the TPS).