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-   -   91 mustang gt problems help please! (http://mustangforums.com/forum/5-0l-1979-1995-mustang/707879-91-mustang-gt-problems-help-please.html)

smokedatshii 03-18-2014 09:44 PM

91 mustang gt problems help please!
 
I have a 91 mustang gt 5.0l and it hesitates to go when i press the gas and a WOT and it runs really rich the exhaust smoke burns your eyes really bad i just fixed the timing and it stalls out sometimes and it will barely even spin a tire i have a trickflow intake and the msd ignition can sombody please tell me what you think is wrong ?

mjr46 03-18-2014 10:50 PM

run a koeo/koer test and a cylinder balance test to see if any cylinders are dropping out, By using the koer test you can access that function of the ecm, google it

smokedatshii 03-19-2014 04:24 PM

Quote:

Originally Posted by mjr46 (Post 8363878)
run a koeo/koer test and a cylinder balance test to see if any cylinders are dropping out, By using the koer test you can access that function of the ecm, google it

Ok but do you think a bad EGR valve could make it perform like this ?


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