94 22re running badd, can't figure it out...Help !!!

[Brads-toy]

I'm new here, just wanted to say hello. Hope someone can help me ! I have a 94 pickup 22re that has never given me a minutes trouble until friday night. I was driving home and it just started missing/skipping badly. I made it home and said i'd just check it out tomorrow. Well I went out the next day and it wouldn't even start. Checked it out and couldnt find nothing... Later in the day I tried it again, and it fired right up, but still has a bad skip. Has started ever since. I have checked timing, fp, put a set of plugs in it, and even took the valve cover off to see if it had jumped timing. NOTHING, the chain was loose, but the guides looked fine, and it isn't rubbing nothing. I'm going to do a compression test later, but I'm thinking its electrical ??? What do I need to check ??? Any ideas ???
thanks
Brad

 

[KLF]

Have you checked for any codes in the EFI ECU?

 

[Brads-toy]

I have, nothing but an exhaust code, and I know why its there.

 

[Bogo]

Consult the FSM...

1993 Toyota Pickup Service Manual

Could the ignition coil have gone bad? Gets way out of spec when hot?

Ignition

.5" spark jump = 20,000 volts...

 

[Brads-toy]

Thats something i've been wondering about. I havent been really sure how to check it. I also have thought about the distributer, but dont know what the correct way to check it would be.
Thanks

 

[WristPin]

check the battery connections and also the ground lug right where the plenum and intake manifold bolt together...

 

[D'Animal]

Make sure your distributor cap did not crack and that you rotor is in good shape.


Simple to check.

 

[Brads-toy]

Thanks everyone 4 the replies. Pretty sure we have figured it out, its apparently a lifter.... Any suggestions as to where to purchase a set ???

 

[toyrunner]

What makes you think it is a "lifter"(rocker)? Is there too much gap? I would think it is a stuck valve, really.

 

[Brads-toy]

What makes you think it is a "lifter"(rocker)? Is there too much gap? I would think it is a stuck valve, really.

Could be, its rattling pretty good. When its making noise, it skipps, when the engine is quiet it runs fine. I added some trans fluid to the engine, but it hasn't helped.

 

[Hilux]

check the compression and pull the valve cover and visually check the TC, and also by rotating it.

 

[2ndGenToyotaFan]

Uhm a stuck valve would not cause it to not start.... I know I drove one for 15k miles like that... Sounds like a bad elec. connection... Check the AFM connector.

 

[Brads-toy]

Before I say what kind of compression #'s I have, what would be decent #s for a 150,000+ miles engine ?

As to it not cranking that 1 time I haven't figured it out either. It only happened that 1 time and has cranked perfect ever since...

 

[2ndGenToyotaFan]

I thought the "wouldn't start" was a cranked but didn't fire thing...

Comp #'s over 150 I'd say.....

 

[WristPin]

compression spec is 172 lbs

to check for burnt valves, use a vacuum gauge. a fluxuation in the reading indicates valve problems.

im just sayin how to check, not that i think this is the problem