Th3duke

I've recently purchased a 1990 pickup with a V6; it was running kind of rough, and couldn't get the timming adjusted properly. Hence, I adjusted the TPS as per 4Crawler's site... My question is this:
What was your VTA - E2 setting?

My idle appears to be a lot better, but there's still a miss.

I've cleaned the throttle body
Adjusted the TPS
Changed the Plugs
Changed the wires
Changed the Dist Cap
Changed the rotor
Set the base timing to 10
Changed the air filter
Changed the PCV

But it still idles a little rough.

Additionally, when I start it up and it's cold, there's hesitation...

4runnermax

LOOKS LIKE TIME TO TO A COMPRESSION TEST AND LEAK DOWN BUT....
BEFORE GOING INTO THAT MAKE SURE NONE OF THOSE FANCY NEW WIRES ARE SHORTING ANY WHERE (LIKE THE EGR, I DID THAT ) ALSO RECHECK EVERTHING YOU DID ALREADY, WOULDNT YOU BE IF YOU FOUND OUT YOU MISSED SOMTHING SIMPLE

4runnermax

ALSO PUSH ALL THE CONECTERS ON YOUR WIRES IF NO HELP CONFIRM YTOU HAVE GOOD SPARK AT ALL WIRES. IF YOU GOTO DO THE COMP AND LEAKDOWN TEST CHECK FIRE, AND GAP AT EACH PLUG AS YOU PULL THEM.... wHAT PLUGS DID YOU USE PLEASE DONT TELL ME BOSH (ONLY PUT NGK OF DENSO IN YOUR YOTA OR YOU COULD BE SORRY)

Elton

no freakin caps

ChickenLover

At what rpm is your idle?

4runnerx3

have you checked the injector seals? One of my 22re's started missing the other day and found one spark plug tip came loose where it is threaded on that the plug wire snaps onto.

Th3duke

rpm runs at about 850 when warm, but when it gets hot it'll run at about 600.

Babypig

Did you clean out the IAC valve on the side of the throttle body? Oil gets in there and causes an idle problem sometimes.

Th3duke

Nope... I didn't clean that. just unscrew the plate and spray some TB cleaner in there? Anything delicate in there that I should be aware of?

Babypig

Just some throttle cleaner and a q-tip or a rag if its dirty. See that your from cantley. I just moved back west from Ottawa.

Th3duke

Hey, that seemed to help a lot! I'll take it for a nice long drive later today and see what she does. Yeah, I'm 10 minutes away from Ottawa, small world... I'd love to see the western provinces.

Thanks again for the help.