Pajero - miss at idle

[Dave]

idle control solenoid would make perfect sense, as it runs fine off idle, and gets worse once you turn the air on.

Will pull the throttle body off and try to unstick the solenoid. It seems that they get gummy and stop opening, rather than failing.

[myliberty]

I reckon it's farked.

should have bought a diesel 4.2 GQ.

they don't get these sort of issues.

[BigMuz]

Why would an idle control solenoid make it miss? If it stalled as you came up to the lights or when you put your foot on the brake then that would make sense.

[tim510]

do the injector thing if possible, try and identify if it's cylinder specific or not

[HoonBoy]

It's a mitsubishi, if the exhasut valve is stuffed then the guides will be stuffed as well.

[Dave]

do the injector thing if possible, try and identify if it's cylinder specific or not

will do this first, as it is probably the easiest thing to do

[tim510]

will do this first, as it is probably the easiest thing to do

yeah, best listen to me...i know stuff...

[KanaL]

Don't forget there's a fucking annoying manifold in the way. Pulling injector plugs is only gonna happen on the rh bank.
I'm looking at vaccuum leak, somewhere around the front of the manifold, behind the thermostat. Have heard of them cracking occasionally, never seen it myself.

[Jason Broadhurst]

Unplug an injector one at a time to isolate the cylinder missfiring.

Go from there with diagnostics.

[RB30-POWER]

i'm with the guys that said possible valve issues.

i would do a cylinder leak down test.

mitsubishi are not known for making good engines.

does it blow the mandatory mitsubishi blue smoke on take off as well?

[Dave]

I reckon it's farked.

should have bought a diesel 4.2 GQ.

they don't get these sort of issues.

I hear that GQs are the best car ever, even better than an r35

[Dave]

I reckon it's farked.

should have bought a diesel 4.2 GQ.

they don't get these sort of issues.

I hear that the forum is borked....

[Dave]

The thing has gotten worse, and it is almost definately a borked valve, you can hear it in the exhaust, going to compression test it tomorrow and then rip one of the heads off. No biggie, glad I got the car cheap though

[dougmo]

what year and what engine?
its not a 3.5 quad cam is it?

[Dave]

It is a 92, 3 L. I won't be pulling it down today, I just realised I need it Tuesday.