But want start ???? Won't start ! Like making auto part stores rich ? Just replacing part's. When are you people going to learn , if you can't diagnose , take it to a qualified repair shop.
SOURCE: I have a 1998 Saturn SL2. It acts like it isn't
You can replace the fuel pressure regulater in the car.
SOURCE: INTERMITTENT SPARK
Make sure the spark plugs are not platinum or anything other than regular copper plugs. The S-series uses a "waste spark" system and will destroy platinum plugs. Regular copper NGKs that came from the factory with the car work the best.
How do you know it is a spark problem? Are you able to verify spark, fuel and compression?
I ask because the usual solution to what you are describing in your problem is replacing the Engine Coolant Temperature Sensor (ECTS). The factory one is plastic and cracks. When it cracks it sends the PCM
a signal that the engine is 40F below zero. The PCM will compensate by
dumping A LOT of fuel into the engine to try and warm it up. It will
cause all kinds of starting and idling problems.
Autozone or the
dealer sells the better brass tipped one. The ECTS is located just
under and behind the upper radiator hose. You'll need to remove the air
intake tubing to see it or get to it. It has two wires going to it and
goes into a connector. Squeeze the connector at the "ears" and it will
come off.
Now is the time to check the connector for corrosion and gunk. If there is clean it out very well. If there is no gunk or corrosion continue on.
A 10MM DEEP well socket will take it out. Swap it quickly
because some coolant will come out (a couple of ounces). Hand tighten
it and snug it with the socket (not too much because it will strip
out). Connector back on (either direction it's non polar). Put the
intake back on and enjoy better starting and idling.
SOURCE: I have 2002 pontiac grand am 2.2 liter. Car shut
Could be the timing chain/belt. Common problem with 2.4 engines.
SOURCE: 1998 Ford Explorer, 4.0 SOHC No
You are at thhe right trail what controls spark is coil pack crank sensor sparkplugs and plug wire but the most important is power . I mean 12 volt connections and ground This includes checking fuses you need a simple volt meter doesnt have to expensive or fancy just to pick up 12 volts let start with fuses in the engine juction box (there not mark to what it belongs to) make sure none are open. especially fuse 19 and 24 , next go to the crank sensor make sure the tabs are snuggly on now to the coil pack there is a red and light green wire this comes from ignition and feeds 12 volts at the coil pack measure that voltage is it 12 volts if not correct it this is from ignition switch ( you can make a tool that feed 12 volt with a wire and a fuse in series and attatch it to battery and the primary wire this is known as hot wire) next go to the ECM wiggle the wires see if that get a connection going if not go back to the ICM here are the wire you are to measure the tan light green, this is from ECM and it is pulsed it measure 5vlts to 0 volts switched then measure the tan orange the same thing 5 volts to zero,then tan white again 5vlts to zero. any one of these 5 to zero fails you fix is the ecm
SOURCE: 2002 saturn vue cylinder 1,3,5 misfiring when swapped coil pack it went away now cyl 2,6 misfiring.
having PO 304 = Misfire cylinder 4,PO 306 = Misfire cylinder 6, as I read above you have done the most. The thing that you have missed is to check whether the Catalytic Converter is faulty or not. To get an idea check whether you have a smell like rotten eggs at the end of the exhaust,you start having problems with cat and needs replacement. My advice before you go for a cat replacement is good to visit an MOT center and check your emissions and then you decide,
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