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2007 3.7 acting weird to start

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  #1  
Old 10-14-2023, 12:52 AM
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Question 2007 3.7 acting weird to start

Ok guys I have a issue with it not starting some times it cranks over and will not start if i turn key to off position and try to start it will im at a loss. I have taken it to mechanic said it was battery then starter then both cam pos sensors crank sensor. still same issue I have found that if i turn key to on position and wait like 30 seconds it will start on first try. Also CEL is not on but i scan and all different codes show up on my scanner. Anybody have some input or suggestions any help would be greatly appreciated Also Mechanic said might be BCM because key fobs stopped working idk know i think he just likes me spending money LoL
 
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Old 10-14-2023, 09:31 AM
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Welcome to HF.

Post the CODEs, got better things to do than guess like your "mechanic".
 
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Old 10-14-2023, 06:02 PM
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Okay the codes i am getting are P0140 P0341 P0418 P0312 and the Pending codes are P0121 P0140 P0341 P0418 P2A01 P1200. Thank you
 
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Old 10-15-2023, 01:23 PM
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I agree lol. That IMHO is not a mechanic. That is a "let me guess and swap" lol!

Code P0140 indicates that there's problem with the post-catalytic monitoring oxygen sensor

P0341 code refers to a problem with the camshaft position sensor (CMP) signal on Bank 1. It could be that the signal coming from the CMP is not matching, not within the expected range, or not timed properly with the crankshaft position sensor's (CKP) signal.

code P0481 may be triggered when the PCM detects that the command and the result do not match when it activates the number two cooling fan

code from P0300 to P0312, it indicates that there are misfires in the engine

Code P0140 indicates that there's problem with the post-catalytic monitoring oxygen sensor

P2A01 bad o2s sensor

p1200
Faulty Fuel Pump ECU circuit


Recommend watch this video. Scannerdanner covers a lot of stuff.

https://www.google.com/search?q=P031...WsOupUzhY,st:0

 
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Old 10-15-2023, 01:25 PM
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I,m going to suggest you contact a good mechanic, shop too.
 
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Old 10-15-2023, 04:50 PM
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Originally Posted by BLK07H-3
Okay the codes i am getting are P0140 P0341 P0418 P0312 and the Pending codes are P0121 P0140 P0341 P0418 P2A01 P1200. Thank you
You posted many inaccurate codes. 1->> "P0312": "Cylinder 12 Misfire Detected"

Clear/erase codes, restart, scan, and post the current/correct codes.

 
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Old 10-15-2023, 08:03 PM
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Thing is really crazy i did clear codes started fine then went to oreilly auto part 2 blocks away and had 17 pending codes cleared them then drove around block and had 4 confirmed. p0341 p0418 p1200 p003 p1063. All codes are never the same.
 
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Old 10-16-2023, 10:16 AM
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Do you have a sunroof? OEM battery cables?
 
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Old 10-16-2023, 03:53 PM
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Yes i do have sunroof but fixed drains after severe flooding after rain or wash cables are oem but have stinger clamp ends on them.
 
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Old 10-16-2023, 04:22 PM
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Originally Posted by BLK07H-3
Thing is really crazy i did clear codes started fine then went to oreilly auto part 2 blocks away and had 17 pending codes cleared them then drove around block and had 4 confirmed. p0341 p0418 p1200 p003 p1063. All codes are never the same.
You are missing a digit(P0003)
P0341 cmp circuit malfunction
P0418 sai circuit malfunction
P1200 fuel injectors circuit malfunction
P0003 fuel regulator circuit malfunction
P1063 vvt circuit malfunction
What do these codes have in common????::::>>>>>INSPECT ENGINE HARNESS & PCM CONNECTOR CONTACTS!



 


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