02 senser ?

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02 senser ? - 5/3/2008 3:59:46 PM    Shrpshtrjoe   Posts: 3 Joined: 5/3/2008 Status: offline Howdy Guys new to the fourm. If a rear o2 senser ( after the cat) go's bad will it effect the performance of the truck.  I have a fault code of p0136 and the truck falls on it's face until its warm then runs better but still idols rough I also have a code of p0601 witch im told means I need to replace my pcm any feed back would be appreciated. Thanks Joe Post #: 1

RE: 02 senser ? - 5/4/2008 1:15:12 AM    dodgerules86 Posts: 2712 Joined: 12/25/2003 From: Sycamore, Illinois (displaced to Arkansas) Status: offline The computer ignores the O2 sensors until the engine is warmed up. What year is your truck, and how many miles are on it? Yes, the P0601 code looks like the PCM has an internal problem that probably can't be resolved by a reprogram (although the truck will probably still run good and everything will still work). However, depending on year/mileage of the truck, you may still be covered until the Federal Emissions Warranty. _____________________________ Current ride: Belleville 220 DES ST - leather, reinforced front end, tan color. Runs on ''alternative fuel'' :) 1996 Dodge Dakota 1986 Honda Civic CRX (in reply to Shrpshtrjoe) Post #: 2

RE: 02 senser ? - 5/4/2008 3:26:51 AM    varsis Posts: 1255 Joined: 10/8/2006 Status: offline P0610 is this: internal control module memory check sum error, I would reset the comp and see what happens. _____________________________ dakotaramwire.com (in reply to dodgerules86) Post #: 3

RE: 02 senser ? - 5/4/2008 4:59:54 AM    Shrpshtrjoe   Posts: 3 Joined: 5/3/2008 Status: offline Thanks for the help guys. It's a 2001 4x4 slt quad cab with 107,000. If the computer ignores the 02 sensers until it's warm I wonder whats making it run rough while it's cold. Those were the only two codes  it gave us. It also has the 4.7 V8. Joe < Message edited by Shrpshtrjoe -- 5/4/2008 5:24:34 AM > (in reply to varsis) Post #: 4

RE: 02 senser ? - 5/4/2008 8:59:18 AM    Shrpshtrjoe   Posts: 3 Joined: 5/3/2008 Status: offline Update: I guess my buddys scanner didn't read all the codes. there were 4 total the pcm failure and 3 02 related. I found the wires going to the 1/2 02 senser melted so I fixed the wiring problem also found the 20a fuse in the engine compartment for the 02 sensers blown replaced the fuse disconnected the battery for 10 mins hooked it back up went for a test drive and so far no lights. The codes were p0031,p0051,p0136,p0601 went to autozone and had them checked. Ill post again if it dosent work just wanted to say thanks to dodgerules86 and varsis for your responce. I will add to this p0601 code came back all others were takin care of so I just ordered a pcm thanks for the help guys  Joe < Message edited by Shrpshtrjoe -- 5/4/2008 1:30:39 PM > (in reply to Shrpshtrjoe) Post #: 5

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