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Author
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Topic: how to check if coils are bad. non ford
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NvrGoFullRetard
CAFords OG
Member # 1633
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posted
 
 
Mazda protege 5 2003.
How do i check if a coil is bad. I replaced the spark plugs and wires. The hesitates to go from a stop. And before anyone ask ive replaced the fuel pump a year or 2 ago also.
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"formally 4.6 eatin gm's"
white 97gt n/a 320rwhp/325rwtq
01 sierra rcsb lsx 408 (murdered out)
03 ecsb sierra 6.0 on 22's
2011 Tahoe
Posts: 2759 | From: PITTSBURG/FAIRFIELD | Registered: Aug 2002
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NvrGoFullRetard
CAFords OG
Member # 1633
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posted
Anyone
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"formally 4.6 eatin gm's"
white 97gt n/a 320rwhp/325rwtq
01 sierra rcsb lsx 408 (murdered out)
03 ecsb sierra 6.0 on 22's
2011 Tahoe
Posts: 2759 | From: PITTSBURG/FAIRFIELD | Registered: Aug 2002
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wilit
Mustang Messiah
Member # 3367
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posted
Is it tripping a fault code with a misfire or just stumbling?
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"If a man hasn't found something worth dying for, he isn't fit to live." - Martin Luther King Jr.
Posts: 4793 | From: 37.78514° North 122.40100° West | Registered: Oct 2003
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SacStangDriver
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Member # 8304
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posted
swap the coil from one cylinder to another. if the misfire code comes up on the cylinder you just put it to. you know its bad.
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Need sidework done at great prices? I work on all makes and models from engine work to gears. Check engine light problems too. 916 912 3493
Posts: 1217 | From: sacramento | Registered: Mar 2008
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Adam5.0
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Member # 6995
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posted
The best way to test a coil is with a lab scope. Assuming you don't have that you can test the resistance with an ohm meter. You would have to figure out the specs of the primary and secondary side
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want something old and japanese
Posts: 1609 | From: Brentwood | Registered: Aug 2006
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Tom Renzo
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Member # 13165
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posted
If the coil was bad you would get a SES light with a misfire code. If memory serves me that is a waste fire setup. Either way do you have a SES light and codes
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I spend money i don't have. Building cars i don't need. To impress people i don't know.
Posts: 557 | From: CT | Registered: Sep 2013
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NvrGoFullRetard
CAFords OG
Member # 1633
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posted
Yes it had a random missfire code cylinder 1. P301 i believe. I changed the plugs and wires. Now it has a hesitation when you leave from a complete stop. I know these motors are garbage but its basically a commuter car.
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"formally 4.6 eatin gm's"
white 97gt n/a 320rwhp/325rwtq
01 sierra rcsb lsx 408 (murdered out)
03 ecsb sierra 6.0 on 22's
2011 Tahoe
Posts: 2759 | From: PITTSBURG/FAIRFIELD | Registered: Aug 2002
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hidnn0s
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Member # 13845
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posted
Not a crappy car, good beater! Swap cyl 1 coil and see if code follows to a new cylinder. If the misfire doesn't change cylinders and the spark plug isn't loose (check) then do a LD/Comp test on cylinder 1
Posts: 239 | Registered: Nov 2014
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