02 Aztek will not start - Engine Troubleshooting


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02 Aztek will not start

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edthacker
New User

Jul 13, 2008, 1:26 PM

Post #1 of 3 (1400 views)

02 Aztek will not start	Sign In

02 Aztek, 2.4 SFI 115K miles
Returned from vacation - 9 days - Aztek sat unused at home. will not start.
Will run on starting fluid-Spark at plugs.= no fuel?
Replaced fuel filter, Fuel Pump, checked fuses, switched around relays (same part #), charged battery- tests OK, at suggestion of dealer- left key on "on" position for 20 minutes to rest computer in case of "theft mode" activation. no result.
tested fuel pressure at rail- 51lbs.
tried different keys- no effect.

Computor problem? Sensor?

Help!

Thanks!

autojoe
User

Jul 15, 2008, 4:55 PM

Post #2 of 3 (1381 views)

Re: 02 Aztek will not start	Sign In

are you sure it is a 2.4L and not 3.4L engine?

edthacker
New User

Jul 16, 2008, 5:16 AM

Post #3 of 3 (1376 views)

Re: 02 Aztek will not start	Sign In

Woops, yes 3.4
Found the problem last night...a critter had chewed thru a crank sensor wire located near the oil filter while on vacation.
Really weird I could start the car by clearing the ECU mermory by disconnecting the battery for 20 minutes...would start fine then not start after a few starts. Also instant fuel economy showed way high MPG. I figured that the the sensor was only giving info to one bank of injectors.

Anyway mystery solved!

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