Do a compression test of the engine. See if your valves are seating properly is what you'd be looking for in checking for low compression. It could be causing the miss. When you changed plugs, did any one plug stand out as being different in color or texture at its base? The constant miss might put black sooty deposits on the spark plug. Course you'd have to remember which cylinder that plug came from to help you locate the miss. I'm assuming you have throttle body injection?
Testimonial: "yes it is FI. it did run fine for about 15 20 miles. kinda like it loaded up with fuel or the exhaust was plugging up."
G16A 1.6L 8valve TBI engine misfire.
The order is ( tune up it , cap ,rotor, wires, sparks) (basics work like magic)
Good motor? compression at 170psi min, Wide open throttle ,warm to hot>
Cam Timing belt slipped due to skipping the 60k tune up?
Good spark test spark.
last is fueling.!
If flooding is the injector leaking.
is fuel pressure at 60 psi ? (Fuel press. reg bad) normal is 30psi.
is injector leaking? (can be view with eyes, unlike any MPI)
43 ways to misfire, and counting. (get help !))
http://www.fixkick.com/misfiring.html
SOURCE: on a 1991 geo tracker trying to find location of fuel pump relay
The computer controlls the power to the pump.Rplace the computer and all should be well. They r on e-bay for around 100 dollars.Good luck
SOURCE: on a 1991 geo tracker trying to find location of fuel pump relay?
The fuel pump relays are mounted on an "L" bracket underneath the ECM. Both have something to do with the Fuel pump. Be careful not to get it confused with the horn relay it is in the same vicinity (under the dash on the drivers side).
SOURCE: 1992 geo tracker will not run
The ECM has a blown capacitor inside it for opening the injector you will most likly need to get it rebuilt, buy a new ,or used ECM had the same problem with my sidekick.
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