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Help! suspected misfire.

dirtydogz
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07 May 2012 15:49 - 07 May 2012 15:49 #39504 by dirtydogz

Replied by dirtydogz on topic Re: Help! suspected misfire.

YES

2002 JLX Soft Top

Jimnybits 2" lift +Pro Comp ES1000 shocks.

Big Jimny rear shock mounts. Big Jimny adjustable panhard rods.
Big Jimny steering damper bracket. Disco Armstrong steering damper. 7X15 black modulars. 205/75/15 Maxxis 743 bravo m/t.Superpro camber correction bushes.Black A bar....

Last edit: 07 May 2012 15:49 by dirtydogz.

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myers647
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07 May 2012 18:06 #39516 by myers647

Replied by myers647 on topic Re: Help! suspected misfire.

Yes mate there under the cover.Mine had broken If i touched the cable I got a shock off it :blink: :blink:

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Mala43B
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08 May 2012 20:52 #39646 by Mala43B

Replied by Mala43B on topic Re: Help! suspected misfire.

Checked my plugs and leads and no obvious faults plus a mate had a OBD2 diagnostic tool and scanned for fault codes, however there were non logged so I'm puzzled as to why I had the fault.

A pal said it may hav been crap in the fuel that may of temporarily blocked the injector and then cleared.

Any ideas?

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facade
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08 May 2012 23:10 #39691 by facade

Replied by facade on topic Re: Help! suspected misfire.

Crank sensor between the alternator and the engine block.
Often doesn't give a fault code.
Wait until it happens again, then cool the sensor by pouring cold water on it, if it fixes the fault, change the sensor.

If it suddenly breaks, go back to the last thing that you did before it broke and start looking there

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X-Eng Simon
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08 May 2012 23:36 - 08 May 2012 23:37 #39695 by X-Eng Simon

Replied by X-Eng Simon on topic Re: Help! suspected misfire.

Crank or cam position sensors! They often start to malfunction as they get hot - as they likely would at 70mph. As has been said, the ECU does not always register them as a fault.

Try heating up each of them with a hair dryer with the engine idling. If it replicates the misfire - there's your problem.

Si

Last edit: 08 May 2012 23:37 by X-Eng Simon.

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Mala43B
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10 May 2012 21:02 #39908 by Mala43B

Replied by Mala43B on topic Re: Help! suspected misfire.

X-Eng Simon wrote:
Try heating up each of them with a hair dryer with the engine idling. If it replicates the misfire - there's your problem.

Si

Cool tip, I'll have to try that one, thanks.

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Help! suspected misfire.

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