4 cyl 2.4 it's slugish and surges at red lights.
the computer does not show any codes. it sucking up the gas.I just had a
complete tune up. could this be o2 sencer or maybe the cat. converter or
maybe vac. leak somewhere?
Has nothing to do with 02 sensor at lite or catalytic converter. Secondary
ignition is not monitored by a fault, therefore I would start with that. You
don't post enough information for anyone to really help you out. How many
miles on this vehicle? were the wires replaced with the plugs? And lastly,
if the engine was sucking down that much gas it should set a fault code. Is
it really that bad?
If the adaptive numerators are not set into the PCM it will never turn the
check engine lite on for a misfire code. Take this vehicle for a test drive
and in second gear drive the vehicle to about 45 mph and let it coast in
gear. foot off the gas and brake pedal until you get to about 20mph. then
key off and drive it normally to see if the check engine lite turns on.
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