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[wanderer259]

Lately I've been having trouble with my 1988 Rx-7. Whenever I start the car from a cold start It'll turn over just fine, but with rx7's that are supposed to idle at 700 rpms, it'll die. Granted as long as I pump the gas once It'll idle after a while and It'll be fine. I was just curious as to what you guys thought was going on. Sounds like one of my spark plugs is out. Also, this only happens from a cold start.

[HorizontalMitsubishi]

check for vac leaks, also try bumping the idle up. It could also be a bad AFM.

[Bubs]

You can always start by giving your car a good tune-up/service, and if that doesn't fix things, do what was mentioned by sidewaysstarion.

I just had to mention this, although only people who know cars will appreciate it: At my work, a customer once said "Ever since you guys put a new idler arm in my car, my car won't idle."

[xsleepydrifterx]

do rotarys have an idle speed control valve? i would try there. when it gets clogged it will prevent your car from idling correctly.

[backalleyracer]

http://www.teamfc3s.org/info/articles/idle.html

[HorizontalMitsubishi]

I think his cam timing is off or he has a stuck valve.

[wanderer259]

Thanks for all of your advice guys! This coming weekend I'm going to be doing a full tune up. I think I may know what went wrong, the third month I had it, I accidentally stalled(for some reason I was driving with boots on, which I never do) I wasn't thinking, turned the keyed foward and cranked on the starter. Well car wouldn't start after that. I had to push start it in reverse to get it going. Afterwards it worked fine and then the idling problem started to occur.

[WRX DEMON Type R]

I second the vac leak.

I took apart my intake one time and put it back together but forgot 1 vac line.

The car wouldn't idle and I almost had a heart attack ><

[kou yuuzhen]

is it true that most rotary cars will have "flooding" when they start their engines from cold? i think this is the best place to ask. i dont know anytg bout engines, lol. anyone with RX-7s here?

[wanderer259]

Yes and no. All RX-7's run rich when started and until they've warmed up. Shut the car off before it warms up and you can pretty much guarantee that you'll flood it.

[Yoshida Seiji]

I own too many RX-7's.

You really shouldn't let them run for any less than five minutes or so. Or until it's warmed up.

As for your idle issue.

Check the link Backalleyracer posted.

It's good stuff.