I've found my 22RE is a bit touchy with bored out TB, cam and 4:1 headers. I have to keep the timing right close to stock (5 BTDC) as any advancing over that and the idle speed is too high. I also added a stiffer throttle return spring on the TB to help keep it fully closed. But with that setup I can set the idle anywhere from 700 on up, usually keep it around 850 or so as it idles a little smoother there and every once in a while it'll drop to a slower idle and it'll get rougher unless I set the normal idle a little higher.

Good point on setting the timing. That's something I'm gonna have to take another look at since I'm sure it's not going to be right now that I've got things more dialed in.

Any particular source for that stronger throttle return spring? Of course, that'll make it hard to apply throttle.

I picked up one at the local hardware store (stock on left, new spring on the right):







I can supply one if you can't find one locally. Yes, does stiffen up the gas pedal a little but I find that helps off-road. Makes it less likely that you blip the throttle going over bumps. I also adjust the dash pot plunger spring to help lift the throttle linkage off idle.

Thanks. I'll keep that in mind.

It alternates between barely running (500 or so) and 1000 (running just fine). Sensors are new, AFM is new (old one died), TPS new and set... It's beyond my ability to diagnose but something isn't right and I can't find it. I have the street RV head with o/s valves and the 261c cam. It's amazing off road but runs at the speed of smell on road with even the slightest incline. I think I might go back to my old cam and see if anything changes. MPG hovers around 16-17.

>>>*Just curious, are you getting a check engine light? I show one in my files with that exact symptom, we fixed it by installing a 50% restricter in the vaccum line to the EGR valve. Odd one that one was..

BTW: On the highway I assume you are running at a lower RPM? Nice response offroad should be nice response on road, unless off powerband.....*EB

Yeah, you should be pulling stumps with that set-up. Just read some of the old archives of Yodaddy. He put that same set-up in his Yota, and he was chasing down v-6 Dodges at 100 mph. Of course, he may have been exaggerating a little. <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" />

No, no CE light thankfully. I passed smog here in CA with flying colors after an OEM cat was sourced.



How do I get my hands on, or make, a restrictor for the vacuum line? I'll try anything!



I drive it like a reasonable person. <img src="/forums/images/graemlins/lol.gif" alt="" /> Seriously, I do. But if I head up to the foothills, it's 3rd gear time if I want to stay over 50mph on a hill. What really burns me is having to dip in to 2nd over a couple of passes over the Sierras. Passing? Forget it. Once I lose momentum, I couldn't pass a Greyhound towing a tractor. <img src="/forums/images/graemlins/frown.gif" alt="" />

It runs smooth with the exception of a fluctuating idle.

I know it's no sports car, but it's too slow.

When I take it off road, it's unreal. It's been about a year now and I still can't believe how strongly it pulls off road. It will pull like a goat right off of idle in a gear or two higher than normal. If it weren't a daily driver, I wouldn't complain about a lack of power on road so much.

My apologies to outdoorfan. I didn't intend to hijack your thread.

Hijack it all you want. My ordeal is over (thankfully).

How do I get my hands on, or make, a restrictor for the vacuum line? I'll try anything!



I drive it like a reasonable person. <img src="/forums/images/graemlins/lol.gif" alt="" /> Seriously, I do. But if I head up to the foothills, it's 3rd gear time if I want to stay over 50mph on a hill. What really burns me is having to dip in to 2nd over a couple of passes over the Sierras. Passing? Forget it. Once I lose momentum, I couldn't pass a Greyhound towing a tractor. <img src="/forums/images/graemlins/frown.gif" alt="" />

It runs smooth with the exception of a fluctuating idle.

I know it's no sports car, but it's too slow.

When I take it off road, it's unreal. It's been about a year now and I still can't believe how strongly it pulls off road. It will pull like a goat right off of idle in a gear or two higher than normal. If it weren't a daily driver, I wouldn't complain about a lack of power on road so much.

My apologies to outdoorfan. I didn't intend to hijack your thread. [/quote]

>>>*Sorry, I got sidetracked with some family issues, no end to paperwork.

On the restricter question, I happened to have a jetting kit for a Holly Carb, I just used a jet, shoved it in the line. Then I kept going bigger until it didn't show a check engine light anymore. We tried plugging the line and instantly got the check engine light, but the idle settled so we knew it was EGR.

My notes say I used .090" jet drill. One thing on that one, if allowed to idle for a long time it would begin to drop off again, a quick blip of the throttle calmed her down.

But it was more acceptable behavior. That was a rare one though, it's a bit tough to diagnose running issues from 2000 miles away but I keep trying....*LOL**..

*Hey, next time you are out on the highway, pretend you are out chasing a Jackrabbit, see if she works better......*EB