Mustang 5.0 will run until I give it gas then dies

1991 FORD MUSTANG
185,000 MILES
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STORMJONES
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I have a 1991 mustang 5.0 t5 manual swap been running good just put new bbk headers on them and put dumped exhaust right before rear axle and a cold air intake. My question is I am running really rich I can smell it and it will idle fine it's when I press the clutch in and give it gas it dies but will start right back up. I have the original 19lb injectors In it and it was running great and now all of a sudden it's doing this to me.
Sep 9, 2012 at 6:42 AM
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KHLOW2008
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Did you check for trouble codes?
Sep 9, 2012 at 9:50 AM
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STORMJONES
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Hasn't thrown any
Sep 9, 2012 at 10:26 AM
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KHLOW2008
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Without any codes, it is going to be rather a long shot. Chart shows possible causes and which system to check.

Try cleaning the MAF to see if it makes any difference.
Ensure there are no vacuum leaks between the MAF and throttle.
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Sep 9, 2012 at 10:50 AM
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STORMJONES
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Okay so I checked it out this morning and of I barely touch the lock cylinder the car will shut off so my question now would be what wires should I look at?
Sep 9, 2012 at 2:40 PM
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KHLOW2008
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Under such circumstance, you should be looking at the ignition switch. Try wiggling the wire behind the ignition key to see if it makes a difference.
Sep 9, 2012 at 2:45 PM
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STORMJONES
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Okay after investigation of the problem I took my under dash apart and found out that the ignition module was unconnected and was shorting so I got it fixed thanks for all the replys.
Sep 9, 2012 at 3:57 PM
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KHLOW2008
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You're welcome.

Sep 9, 2012 at 4:07 PM
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