Pontiac Problems? Ask a Mechanic for Answers ASAP
is it still misfiring? what codes are current?
ok need to know what is current.. did it get tuned up?
spark plugs and wires?
ok get me the codes so we can come up with a plan of attack... is the engine light on flashing or solid
ok usually I work the evenings on here
blinking is usually a misfire get the codes and let me know likley one will be po300
do you have a autozone near you?
po108 is a map sensor code po128 is a coolant temp sensor issue
po404 is a egr issue the 1404 is also egr
and the po300 is a random multicylinder missfire
are you going to repair yourself?
the egr valve map sensr and coolant temp sensor are all likely failed... they are common to fail without a high end scan tool its difficult to test each component.. as for the miss fire I would check the plug wires that were just installed and the ignition coil..99 percent of miss fires are plugs wires or coil
the oxygen sensors
how do you plan on checking them? they have nothing to do with egr or coolant temp
ok I doubt its the sensor,,