1st Gen Neon 1995 through 1999 Neons

PCM code 42???

Thread Tools
 
Search this Thread
 
  #1  
Old 04-20-2007 | 04:18 PM
eric1355's Avatar
eric1355
Thread Starter
Joined: Apr 2007
Posts: 2
Likes: 0
Default PCM code 42???

Was wondering what would cause and error code 42. car will not start. relays are good fuse is good. driving me nuts
 
  #2  
Old 04-21-2007 | 01:25 AM
das2123's Avatar
das2123
Legend
Joined: Apr 2006
Posts: 9,112
Likes: 1
From: Spring, TX
Default RE: PCM code 42???

Code 42 - 42 Fuel pump relay control ckt, Auto shutdown relay control ckt, No ASD relay output voltage at PCM, Fuel level sending unit volts out of range, Fuel level unit No change over miles

How do you know the relays are good? Did you do the horn relay swap test? Can you get it scanned for the "P" code?
 
  #3  
Old 04-21-2007 | 03:08 AM
eric1355's Avatar
eric1355
Thread Starter
Joined: Apr 2007
Posts: 2
Likes: 0
Default RE: PCM code 42???

going toget it scannedtomorrow morning. yeah did the horn swap with both relays they both work.
 
  #4  
Old 04-29-2007 | 10:56 PM
agillit209's Avatar
agillit209
Joined: Apr 2007
Posts: 1
Likes: 0
Default RE: PCM code 42???

LOL, OMFG..... This code took me a couple months to figure out. Turns out my fuel pumps sending unit wasn't making contact (gas gage never worked). If you pull out your fuel pump, which is a pain in the ****in' *** for me since im not a mechanic, but turns out my floats sending unit wasn't making contact. Just bent the contact back and ohmed it out with my ohm-meter between the two center contacts for about 1Kohms full and 60ohms empty. Put it back in my fuel tank and the code went away and my gas gage started working as well.
 



Quick Reply: PCM code 42???



All times are GMT -4. The time now is 09:46 AM.