First I am new to the forums here. I have a 93 that I just recently acquired and I am having a problem with it running way to rich. The car seems to breakup about the time the turbos get spooled and then it just wants to bog down. The only performance mods I have done are exhaust, down pipe,

piping kit, boost gauge, turbo timer, upgraded all the vacuum hoses to silicon, air filter kit (hks), and I am waiting for my blow off valve. When I open the hood there is a strong gas smell that remains for quite a while. I am hoping that you all may be able to help or give some advise on what to check out. Any help would be great. Thanks

ok you are hitting fuel cut. don't beat on the car till you get a reprogrammed ecu eg M2 or Pettit. you risk blowing the engine!!!!!!!!!!!!!!!!!!!!!!!!!! as you may have noticed this is VERY important. lemme know if you need more info. this could also be an ignition problem. change the spark plugs and wires if in doubt.

Thanks for the info. I just talked to someone and they said that I blew an apex seal??????? Please tell me it isn't this........ It just started doing this after I pulled the intake to replace some of the vacuum hoses. So why would it be the apex seals???? This is becoming very depressing.



Thanks

is the car idling ok ??? what kind of vacuum are you pulling at idle. those two things can tell you easily if you broke an apex seal. good luck. lemme know if you need more help

Idles rough. Need to check vacuum. Not real sure how though. I know that sounds crazy but its true.

Your boost gauge should show vacume when at idle. You should be somewhere around -15mm of vacume.



Did you do ANYTHING with the fuel when you pulled you manifold? Did you pull the injectors or anything like that? Have the injectors ever been replaced?



Did you reconnect the map sensor line when you put it back together? That will make it run like crap and break up, I'll also make a strong fuel smell when barely running idle. If the map sensor isnt hooked up its reading outside pressure instead of your motors pressure. It reports that pressure back to you ecu.



Later,

STEPHEN



Later,

STEPHEN

Everything seems to be hooked up. The injectors have never been replaced before that I know of. Before I replaced all of the vacuum lines I was having boost problems which someone told me was a vacuum problem. Fixed that now I am having this problem.



Thanks for the help

sounds like a loose map line to me...

Thanks everyone for the help and suggestions. I am still trying to figure it out. If and when I get it fixed I'll let everyone know. Also if anyone else knows what might be causing this problem please post, because you can never have enough knowledge on these cars.



Thanks https://www.nopistons.com/forums/pub...#>/BURNOUT.gif

if nothing else stephen is in alabama if you offer him some $$$$ maybe he will come and help you https://www.nopistons.com/forums/pub...IR#>/devil.gif

Thats right!!!! Hey Stephen what are we talking money wise

for me to drive to Bham and have you take a look. The car is driveable I guess....... Maybe trailor it........ The last tank of gas only lasted 104miles and I was easy on the gas.. Either way let me know, I have a friend up there so I could be there all weekend if possible. He used to help Reed over at the Turbo shop. He now works for a tint shop off of 65.

2Fast, did you check your MAP sensor yet? It's the small black box on the drivers side of the firewall. It has a small fuel filter, and below that it connects to the upper intake manifold. It is very very common for this vacuum line to come off, and cause the engine to run very rough and rich. I would check that first. Also anytime you smell fuel it's a major problem. Make sure there is no fuel leaking on your car, or you may end up with an engine fire.



eric

I have had the same problem for some time now. I have replaced the 02 sensor, Fule pulsation Dampner and check all my valves in the Fuel Recirculation system. The next step is to check the charcoal canister. Evidently they can stop working after some time. It is located near the fuel tank. One thing to try is make sure your car had all the vehicle recalls performed. The other thing is to contact Mazda and see if they have any thoughts. Good luck.. If I get my fuel smell licked, I will post the solution that worked for me.