Easiest way to check for fuel, and spark?
#1
Easiest way to check for fuel, and spark?
Whats the easiest way? Car ran fine all the way home, stopped for gas, started up fine again, then went to start it up at home. On first crank it started for a mili-second and stalled as soon as I tried to move it. Now it just cranks.
#2
TECH Senior Member
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Fuel - using a fuel pressure gauge to check for ample pressure. About $30 from pretty much every parts store.
Spark - using a spark tester. It's basically a big spark plug which measures the strength of the spark. Use it directly off of the coil to check for spark going in to the opti.
Spark - using a spark tester. It's basically a big spark plug which measures the strength of the spark. Use it directly off of the coil to check for spark going in to the opti.
#6
Got fuel. no spark. The icm tested fine, and I replaced the coil. Still doesnt start. Could this be anything other than the opti? I just replaced the opti 8 months and 3000 miles ago with a new delphi unit from thepartsladi.
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#8
TECH Fanatic
You say 'no spark". Where are you checking? if your getting no spark out of the coil, then its your ICM, coil, or something in the wiring to the coil.
if you're saying no spark at the end of the plugs.. well, need to suspect bad plug wires or bad opti distributor... I'd check more than just one plug wire to be sure.
anybody - the optical sensor part of the opti serves as the trigger for the coil to spark, right? if I'm right on that, you need to include that and its wiring as well.
if you're saying no spark at the end of the plugs.. well, need to suspect bad plug wires or bad opti distributor... I'd check more than just one plug wire to be sure.
anybody - the optical sensor part of the opti serves as the trigger for the coil to spark, right? if I'm right on that, you need to include that and its wiring as well.
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Correct. http://shbox.com