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97 sebring LXI no spark, no injector pulse

  • Scorpeon36
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8 years 3 months ago #17449 by Scorpeon36
97 sebring LXI no spark, no injector pulse was created by Scorpeon36
The sebring belongs to my daughter. I came from out of state to fix and drive back. AAA towed the car back in Sept of 2017 and diagnosed it to needing a new distributor. It's been sittingvever sine so any codes that may have been there are now gone

. She had already bought the new distributor from am auto parts through eBay when I arrived. Installed no still nothing. I am getting 12v from cam sensor for one sec then again when crank sensor takes at both two wire connector at distributor and at injectors. No injector pulse. I'm getting fuel pump run from cam sensor but not from crank sensor. from my limited knowledge of this chrysler system seems asd relay is working as well I'm seeing the check engine light illuminate when turning on key then hoes away as it should telling me brain is working at least on some level. I am using only a test light and meter to test but one interesting thing to me is I'm not just getting injector pulse but am getting positive voltage on both wires at injectors. I have to get back home please help. I don't want to buy a new crank sensor if not needed but as I understand it. That still could be culprate with my variable being the positive voltage on both injector wires. Again please help. And thank you

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8 years 3 months ago #17451 by chief eaglebear
Replied by chief eaglebear on topic 97 sebring LXI no spark, no injector pulse
hi as far as I know too the crank sensor signal should be present at computer and I guess the cam sensor signal might be needed too unless its a synthesized signal also please elaborate as to what you mean that you are getting fuel pump run from cam signal and not crank signal as far as the no spark I would ensure the distributor is getting the signal also is that throttle body injection or individual injectors

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8 years 3 months ago #17459 by Scorpeon36
Replied by Scorpeon36 on topic 97 sebring LXI no spark, no injector pulse
The cam sensor is inside distributor as well as the coil Witch is new. It has injectors at each cylinder . I'm assuming the coil gets its signal on negative but I'm not sure were to check for it. I am getting positive voltage from cam and crank sensors at coil and injectors when the cam sensor is initiated when turning the switch to on position the fuel pump runs but does not not run when the crank sensor takes over after the first second of camsensor signal

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8 years 3 months ago - 8 years 3 months ago #17464 by Chad
What engine (8th vin digit)? Coupe or Convertible? (edit: Never mind, it must be the 2.5L Vin N , correct?) I will post Schematics, soon.


Seeing positive (battery) voltage on both injector wires is normal. This video will help you understand why. Time Marker 17:30 draws it out. You will see battery voltage on both wires until the computer pulses a ground, to activate the injector.


"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."

I have learned more by being wrong, than I have by being right. :-)
Last edit: 8 years 3 months ago by Chad.
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8 years 3 months ago #17465 by Chad

"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."

I have learned more by being wrong, than I have by being right. :-)
The following user(s) said Thank You: Noah, Tyler, chief eaglebear

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8 years 3 months ago #17471 by Scorpeon36
Replied by Scorpeon36 on topic 97 sebring LXI no spark, no injector pulse
Yes it's the lxi coupe 2.5 vin N. Thanks for the help. I will take a look at video and schematics. Ill be honest I got to here on this point with but i am at a loss at moment at what I'm looking for

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8 years 3 months ago #17505 by Scorpeon36
Replied by Scorpeon36 on topic 97 sebring LXI no spark, no injector pulse
Great video I've downloaded the schematics and put them together and mapped out all the components that would come in to play but donthave the knowledge of knowing the flow to chase any possible bad wires etc. Where next. Is there a video that would talk me through diagnosing from here. Thanks

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8 years 3 months ago #17510 by Chad
This might give you a bit of direction. I will not be around, today. Hopefully, someone else will jump in and assist you.




"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."

I have learned more by being wrong, than I have by being right. :-)

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8 years 3 months ago #17511 by Scorpeon36
Replied by Scorpeon36 on topic 97 sebring LXI no spark, no injector pulse
Ok thanks. I was thinking I'd subscribe to the paid access can you suggest any resource inside of paid that will be helpful. Have a good day. Thanks

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8 years 3 months ago #17512 by Chad
I, highly, recommend the premium channel. You won't find a better, more affordable resource. You can take ScannerDanner's Diagnostic class at Rosedale Technical College, from Day One. Or, you can jump right to No-Start, No-Spark Diagnostics. You will find the information you need for this problem, and any problems you may come across in the future. :)

"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."

I have learned more by being wrong, than I have by being right. :-)

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8 years 3 months ago #17643 by jacobnbr1
Replied by jacobnbr1 on topic 97 sebring LXI no spark, no injector pulse
FYI These thing break the flywheels and can cause alot of diagnostics nightmares. You have to pull the trans to discover the flywheel is broken.

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