Question about 2001 Jeep Grand Cherokee

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I have a 2000 jeep wrangler 4.0 engine it ran good for 16 miles then would quit no check engine light on so i scanned it anyway came up with a p 1391 mis fire so i changed can sensor ran good about 30 minutes and died scanned again same 1391 i returned cam sensor and got a new coil pack and crank sensor i installed coil pack ran good about 30 minutes and died so i installed crank sensor and put back on old coil pack ran good 45 minutes then actually started missing and check engine light on it set a po352 code and also a 1391 i put new coil pack back on and restarted ram 15 minutes and started missing again setting codes po352 and p1351 i am at a lose is it the ecm ?

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It does sound like the ecu is bad the only other thing it could be is the antitheft system is having problems

Posted on Dec 03, 2010

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http://www.fixkick.com/Jeeps/ASD.html

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Engine keeps missing. unknown codes


Code 1682 indicates low battery voltage. This could be a problematic alternator, which would likely cause misfiring. Autozone should be able to check this for you for free.

Code 1391 indicates the computer can not see the crank or cam sensor signal. This would likely be a result of the misfires.

Code 0320 indicates the crankshaft position sensor reference signal could not be found while the engine is cranking.

All of these issues point to either a cam/crank sensor malfunction or a charging system problem, either or both of which could cause the misfiring.

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1 Answer

2000 JEEP WRANGLER


hello first thing to check is your fuses make sure there all good sounds like one blew ign,ecm,pcm, goodluck

Aug 09, 2008 | 2000 Jeep Wrangler

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