Christian ojeda
Newbie
So my truck is a 93 k2500 with the throttlebody 350, when I but it in drive, if I'm hard on the throttle after a stop sign or pretty much at all it backfires from the exhaust and bogs down to pretty much stalling. Then when I let off the throttle comes back to life, on the freeway it won't go over 60 and after 2000 rpm it starts misfiring and stuttering like its retarding the timing, it won't go over 2500 rpm I've replaced cap rotor plugs and plug wires along with fuel pump and cleaned the throttlebody, and air filter. Pretty lost at this point. It only happens in drive, has short tube headers, true dual exhaust with new cats and o2 sensor (since it only has the one o2 sensor being a 93). Could really use the help
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