I have 1987 Rx7 that sometimes when I start her up that it whats to die and I have to hit the gas a little( no tb mod) but then other times it starts and run fine other than a little miss (I think). Another problem is that sometime the car seem to run rich and load up then stop and not do it again.

Thank you guys

 

bump

 

rotary god please help

 

Done a tune up laterly?

 

I need to do that soon

 

When started cold, does it idle about 1200/1300 rpms for several minutes til it warms up............or start and idle at a lower rpm?

Like the rotary god above said...tuneup, but please answer the above question.

 

idles at 1200/1300 but sometime I start it up and runs fine. Then other time it is hard to start. You have to hit the gas a little to keep it running

 

A cold car should idle initially around the 1200/1500 so it sounds like the thermowax/fast idle cam is doing its job, especially if the idle drops down around 700/800 after warming up. So that sounds alright.

A change of plugs might help.

But it could also be a bit of a bac thing also. It sounds like on occasion its not working like it should. On starting the car the bac goes full open and after the start should be trying to maintain a idle. So......after you try the tuneup, if that does not help, try removing the bac and pouring some fuel injector cleaner in it and let it sit in it for a few hours and blow it out and reinstall it. Tell you what. While its out, connect its plug and then just turn the key to ON. If it vibrates, then pour some fuel injector cleaner in it and let it vibrate. Self cleaning is the idea. Then dump the fluid and blow it out and reinstall it. The old gasket should still be good to go or if in doubt use a touch of RTV on the face and reinstall the bac.

 

thanks for info.

 

You should do a tune-up. Honestly you would be suprised what a tune-up can fix!

 

Also, your waterthermosensor can affect your cold idle.

Have you tried to pull any codes?

 

Yes. I did have the water theromsensor code about a half year ago. The sensor was not bad but the wiring was loose. I have never had the code ever since. But I still have that O2 code

 

I have the same problem with mine. I try to start it, but it only seems to feed on the 2nd try. If you find an answer let me know!!