1990 4runner 22re

I am trying to work out why my 4th cylinder is missing at idle.
I have checked my distributer cap, plug wires, vacum leaks, spark plugs, injectors none of this has had any effect on why the 4th is missing at idle. Once rpms pick up then the miss goes away.

Anyone have some good direction for me??

Thanks,

malteserunner

iTrader: (1)

Valve adjustment might be a little tight. Welcome to YT.

1990 4runner 22re

I didnt add that to what I did already but ya I did a vavle adjustment and they were a bit tight. after I adjusted them I had no change in my problem. Kinda stuck on this thinking I might swap out ECC or something?

Thanks,

malteserunner

iTrader: (1)

Did you check your compression after the valve adjustment?

1990 4runner 22re

Checked before but not after. I will check that later tonight but It seems like its got to be a elctrical issue?

malteserunner

iTrader: (1)

Probably, but I always rule out the basics first. What were the compression readings before the valve adjust?

malteserunner

iTrader: (1)

Oh, and you need to check your coolant level. Low coolant causes idle issues in 22RE's.

1990 4runner 22re

Coolant level is good (drained to do the injectors and then replaced) compresions test was good it was around 170 striaght across