Hey there so I thought I had my 94 runner with 22re figured out after adjusting tps to spec. I’ve now also adjusted my timing to 2deg to get it to stop pinging on regular. It used to idle really high on cold starts but retarding the timing stopped that. It’s done this low idle on warm restarts since i got it. I have no codes and it otherwise runs great. I’ve also tested the MAF with ohm meter and it is working correctly.

Has OEM plugs and a recent oil change

On cold starts the truck starts up easily idles high to warm and then drops to 750 once warm.

If I take it somewhere and turn it off and leave it for a while and come back it usually starts and goes 750

If I drive it somewhere shut it off and then shortly after get in and fire back up it idles low. Like 500-550. I give it a little gas and shortly after it’s back at 750 give or take.

It also tends to have a bit of a gassy smell on most (maybe all) startups. I’ve read this could be the egr.

I had attempted to pull the manifold to clean it but snapped one egr bolt off the intake and stopped there not having a replacement bolt.

BTW it was doing the low warm idle before that so it’s not due to a leak.

Im considering getting the bolts and trying to pull the egr to block it off and test it. Just a little concerned that I won’t be able to get the bolts out of the intake and since it’s an awkward place they’d be near impossible to get out without pulling the whole intake. (The second bolt felt like it was gonna snap when I tried to loosen as well)

Do I leave well enough alone and get used to giving her a little throttle on warm starts?

I wasn’t brave enough to snap the other bolt off because I couldn’t be certain it would break the same as the first. The broken bolt would most likely be accessible to twist out with a pair of vice grips as it was mostly the head that came off. However if the other one snaps deeper in then I’ll have to pull the whole intake and drill and extract what’s left of it. (If I’m lucky that’s what will happen.) or it might come loose without snapping but it had that metal twisting feel not the tight and unthreading feel. I’m guessing it’s the aluminum intake plenum seizing to a stainless bolt attached 25 years ago.

I’ve read others with same problem still hunting for answers. Apparently blocking off egr made no change so maybe it’s not that anyway.

Anyone got any ideas?

I’ve just been rolling with it either giving it a little gas on warm starts till it idles at 750 or starting with the ac on and it idles 750 till it warms up.