1986 Mercury Marquis Passanger side iexhaust hot between ca

[quote:b8734e15bf="cartroublesinmichigan"]Other Category problem
1986 Mercury Marquis V8 Two Wheel Drive Automatic 94000 miles
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93 ford mustang 5.0L in 86 grand marquis with 19#injectors that are new. after the car warms up the exhasut is red hot on the passanger side can't figure out why when everthing checks out fine please help[/quote:b8734e15bf]


check the firing order
check exhaust system
do a cat flow check
check what is you have for vacuum readings

running lean. or misfiring..