my ecu is running me rather rich and after soem hard runs my car refuses to idle well. it sits at about 600rpms sounds like its running on 1 and a half rotors and reeks of gas. its driveable though, and damn fast, it just wont idle. so did i chip/crack a seal or did i foul a plug or even something else?
thanks
barban

 

Check your map sensor. Have you bumped it lately?

 

you can check the plugs/map sensor but if you think its a cracked seal stop driving it before it gets real expensive(apex seals destroy housings,rotors,turbos)

 

I kinda have the same problem going on with mine. Is the idle fluctuating and are you getting smoke. Mine is running really really rich and I get lots of black smoke reeking of fuel. We think it is a stuck open injector, so I'm in the process of replacing all my injectors now.

 

Check your injectors if your smelling gas, cause if they're leaking you have a serious problem that you need to fix pronto. This may be causeing your idle problem too, cause I had the same problem.

 

mmmmmm, at the moment it will not run. it starts but tries to die. if i can keep it alive it idles atg 2500 and backfires and tries to die when i hit the gas. rx7trix told me that i fould my plugs. TBC

 

Keep in mind that if one of the "cylinders" had a cracked apex seal, the gas and air will not compress correctly and will cause a rich like smell/feel.

Most of the time it's the rear that goes, so, a cheap, quick, not 100% like the real mazda compression tester, way to check is to crank it over and listen for even pops. Any evidance of a weak or weak pops is usually an apex seal. Usually you'll hear one good followed by two weaker pops on a nuked engine. You can do the poor-mans compression test with the shraeder alve removed also. Look for a variance in the compression readings. Do the same for the front if the rear checks out.