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No Spark..... No RPM.....

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Old 04-17-2012, 09:11 PM
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Default No Spark..... No RPM.....

Problem I believe was caused by low voltage issues. Replaced battery and car just turned over fast without spark. Ran fine before weak battery issue, Also not showing RPM on hp tuners while cranking over. I am guessing maybe crank sensor?? I have one ordered and will try that first. Car is a 98 SS full bolt on cam-only with spray. Tested timing tuner and it's fine. Any suggestions would be appreciated. Thanks.
Old 04-17-2012, 10:49 PM
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Were you tuning the car on a weak battery?any codes stored?also have you tried a vats relearn just in case?
Old 04-17-2012, 11:09 PM
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Originally Posted by stangtrader
Were you tuning the car on a weak battery?any codes stored?also have you tried a vats relearn just in case?

Nope, wasn't tuning. Car was running fine. Battery went dead from not being driven/started often. Charged battery, car barely started but rpm were up and down, so I installed a new battery and car just turned over fast with no spark.........
Old 04-18-2012, 05:35 PM
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Any Ideas?? Anyone?
Old 04-18-2012, 07:29 PM
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Your car slow junk, sell it for a nice mustang



get the new cam sencor in?
Old 04-18-2012, 08:14 PM
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Originally Posted by studderin
Your car slow junk, sell it for a nice mustang



get the new cam sencor in?




Lol.... Not yet. Its ordered...
Old 04-20-2012, 04:20 PM
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Over 150 views and noboby has any suggestions???
Old 04-21-2012, 05:50 PM
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Check all of your grounds. This may cause both your charging/low battery voltage issues as well as a no spark/rpm problems.
Old 04-22-2012, 09:39 AM
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Originally Posted by mantycarguy
Check all of your grounds. This may cause both your charging/low battery voltage issues as well as a no spark/rpm problems.
All grounds seem to be ok. Thanks for the reply.
Old 04-22-2012, 12:38 PM
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Have you tested for spark? Do you know if you have injector pulse? Have you checked all fuses and fuse links? Do you get any codes?
Old 04-22-2012, 02:49 PM
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Originally Posted by Moter
Have you tested for spark? Do you know if you have injector pulse? Have you checked all fuses and fuse links? Do you get any codes?

Getting no spark. All fuses, relays, etc seem good. No codes.
Old 04-22-2012, 03:02 PM
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Do you have injector pulse?
Old 04-22-2012, 04:04 PM
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Originally Posted by Moter
Do you have injector pulse?

I'll check.
Old 12-30-2014, 02:48 PM
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Did you ever find out what it was? having this same problem?
Old 12-30-2014, 03:08 PM
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This has been a crank sensor or crank sensor wiring problem every time I've encountered it.



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