nchamilton2105 Posted February 23, 2009 Report Share Posted February 23, 2009 I have a 1997 Deville, my service engine light is on. I hooked it up to my buddies code reader and it says miss firing cylinder. Does anyone by chance know what this could be? Any help would be greatly appreciated. Link to comment Share on other sites More sharing options...
adallak Posted February 23, 2009 Report Share Posted February 23, 2009 I have a 1997 Deville, my service engine light is on. I hooked it up to my buddies code reader and it says miss firing cylinder. Does anyone by chance know what this could be? Any help would be greatly appreciated. Could be a lot of things, but plug wires are the first thing I would check. Have you changed the fuel rails (under recall)? Wires go bad when someone disturb them as it happens when one replaces plastic fuel rails with steel ones. The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
ampiifire Posted February 23, 2009 Report Share Posted February 23, 2009 depends on the specific code being thrown, nick. find out what code it was (off + warmer on hvac controls with engine off, ignition on). certain codes will point to a specific cylinder or for a specific reason, the p0300 says that multiple cylinders misfire randomly (which is much tougher to diagnose). if it said p0301 or p030x etc it would be the number x cylinder misfiring. could definitely be plug wires.. but if it were it would usually be isolated to a cylinder or two and would likely happen much more than randomly. but if you haven't changed your wires in 12 years you should get on that anyways. tell ya what... get the codes and try and figure it out and meet back here if you cant :] Link to comment Share on other sites More sharing options...
Ranger Posted February 23, 2009 Report Share Posted February 23, 2009 If you need to and do replace the wires, stick with A/C Delco. I think the number is 748J. Link to comment Share on other sites More sharing options...
nchamilton2105 Posted February 24, 2009 Author Report Share Posted February 24, 2009 I have a 1997 Deville, my service engine light is on. I hooked it up to my buddies code reader and it says miss firing cylinder. Does anyone by chance know what this could be? Any help would be greatly appreciated. Could be a lot of things, but plug wires are the first thing I would check. Have you changed the fuel rails (under recall)? Wires go bad when someone disturb them as it happens when one replaces plastic fuel rails with steel ones. I didn't know anything about a recall on my car, I have changed the plugs and wires. So I am kind of confused on what it might be. Link to comment Share on other sites More sharing options...
BodybyFisher Posted February 24, 2009 Report Share Posted February 24, 2009 Post the codes in detail. YOU DO NOT NEED TO HOOK UP YOUR FRIEND'S CODE READER, go to the top of this page click HOW TO, then DTC CODES and read how to check your codes Post them here so WE can see what you are getting Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Ranger Posted February 25, 2009 Report Share Posted February 25, 2009 I have a 1997 Deville, my service engine light is on. I hooked it up to my buddies code reader and it says miss firing cylinder. Does anyone by chance know what this could be? Any help would be greatly appreciated. Could be a lot of things, but plug wires are the first thing I would check. Have you changed the fuel rails (under recall)? Wires go bad when someone disturb them as it happens when one replaces plastic fuel rails with steel ones. I didn't know anything about a recall on my car, I have changed the plugs and wires. So I am kind of confused on what it might be. It was for '95 - '97 Northstars. Be sure your fuel rails are stainless steel. Link to comment Share on other sites More sharing options...
nchamilton2105 Posted February 25, 2009 Author Report Share Posted February 25, 2009 It was for '95 - '97 Northstars. Be sure your fuel rails are stainless steel. If they are plastic can I still get them switched to stainless steel for free? What happens if they are plastic? Link to comment Share on other sites More sharing options...
BodybyFisher Posted February 25, 2009 Report Share Posted February 25, 2009 If they are plastic they will replace it for free. Hurry up before they go out of business (j/k).. I just drove down NEW CAR ROW in my neighborhood, it is about 2 miles long and its all NEW car dealers, MOST ARE CLOSED.... OMG The plastic fuel rails were bursting and causing fires Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
adallak Posted February 25, 2009 Report Share Posted February 25, 2009 If they are plastic they will replace it for free. Hurry up before they go out of business (j/k).. I just drove down NEW CAR ROW in my neighborhood, it is about 2 miles long and its all NEW car dealers, MOST ARE CLOSED.... OMG Mike, I do not think they are going to mess with old plastic lines. They will give a new Cadillac instead. The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
ampiifire Posted February 25, 2009 Report Share Posted February 25, 2009 yup wait till they liquidate after the govt denys the second chunk of money and buy a new one at the flea market Link to comment Share on other sites More sharing options...
nchamilton2105 Posted March 2, 2009 Author Report Share Posted March 2, 2009 Here are the codes that my 97 Deville is giving me. RFA B2560 PCM P1033 PZM B2472 PCM P1578 PCM P0603 Link to comment Share on other sites More sharing options...
BodybyFisher Posted March 3, 2009 Report Share Posted March 3, 2009 Here are the codes that my 97 Deville is giving me. RFA B2560 PCM P1033 PZM B2472 PCM P1578 PCM P0603 P0603 - Control Module Long Term Memory Reset (probably due to battery being disconnected) P1033 (don't see this one) Check this code again, there is a P1133 P1578 - BBV Sensor Circuit Low Vacuum B2472 - Low Beam Fault Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Texas Jim Posted March 3, 2009 Report Share Posted March 3, 2009 Here are the codes that my 97 Deville is giving me. RFA B2560 PCM P1033 PZM B2472 PCM P1578 PCM P0603 B2560 - RKE Message Validation Error (Remote Keyless Entry) P1033 - I think this is an 02 sensor code B2472 - Low Beam Fault P1578 - BBV Sensor Circuit Low Vacuum (Thats BRAKE BOOSTER VACUUM) P0603 - Control Module Long Term Memory Reset Link to comment Share on other sites More sharing options...
Texas Jim Posted March 3, 2009 Report Share Posted March 3, 2009 Mike, You were doing them the same time I was. Link to comment Share on other sites More sharing options...
BodybyFisher Posted March 3, 2009 Report Share Posted March 3, 2009 Mike, You were doing them the same time I was. , we do that often, we had the same problem with the possible O2 sensor code also, if he has a check engine light, it has to be more than the others.... GMTA Jim Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
nchamilton2105 Posted March 3, 2009 Author Report Share Posted March 3, 2009 Here are the codes that my 97 Deville is giving me. RFA B2560 PCM P1033 PZM B2472 PCM P1578 PCM P0603 I'm not very good with vehicles, being I am only 19. Do you think the brake booster censor could just be from when I unplugged the plug from the booster. But everything else I really have no clue about. If you could help me out I would really appreciate it. B2560 - RKE Message Validation Error (Remote Keyless Entry) P1033 - I think this is an 02 sensor code B2472 - Low Beam Fault P1578 - BBV Sensor Circuit Low Vacuum (Thats BRAKE BOOSTER VACUUM) P0603 - Control Module Long Term Memory Reset Link to comment Share on other sites More sharing options...
Texas Jim Posted March 3, 2009 Report Share Posted March 3, 2009 I'm not very good with vehicles, being I am only 19. Do you think the brake booster censor could just be from when I unplugged the plug from the booster. But everything else I really have no clue about. If you could help me out I would really appreciate it. B2560 - RKE Message Validation Error (Remote Keyless Entry) P1033 - I think this is an 02 sensor code B2472 - Low Beam Fault P1578 - BBV Sensor Circuit Low Vacuum (Thats BRAKE BOOSTER VACUUM) P0603 - Control Module Long Term Memory Reset Have you cleared all of the codes? If not...clear them and lets see which ones come back. I am guessing that AT LEAST the P1578 and the P0603 will go away...maybe more. Then we will concentrate on the ones that come back and help you fix them. The P1578 will turn on the SERVICE ENGINE light. Link to comment Share on other sites More sharing options...
nchamilton2105 Posted March 3, 2009 Author Report Share Posted March 3, 2009 ok i will clear the codes tomorrow and let you know what codes come back, thanks again. Link to comment Share on other sites More sharing options...
Texas Jim Posted March 3, 2009 Report Share Posted March 3, 2009 ok i will clear the codes tomorrow and let you know what codes come back, thanks again. No problem. We will try to help you get it all fixed. Link to comment Share on other sites More sharing options...
nchamilton2105 Posted March 3, 2009 Author Report Share Posted March 3, 2009 I cleared the codes today, but none of the codes have came back so I guess I will just wait and see. Link to comment Share on other sites More sharing options...
Texas Jim Posted March 4, 2009 Report Share Posted March 4, 2009 Actually that is great news. As long as there are no codes...you have no problem. Link to comment Share on other sites More sharing options...
BodybyFisher Posted March 4, 2009 Report Share Posted March 4, 2009 Actually that is great news. As long as there are no codes...you have no problem. Did you decide to sell this car? Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Texas Jim Posted March 5, 2009 Report Share Posted March 5, 2009 Actually that is great news. As long as there are no codes...you have no problem. Did you decide to sell this car? Are you talking to ME? I haven't thought much about selling it. Been kinda planning on keeping it for about another year and a half ...or so. Link to comment Share on other sites More sharing options...
nchamilton2105 Posted March 5, 2009 Author Report Share Posted March 5, 2009 Actually that is great news. As long as there are no codes...you have no problem. Did you decide to sell this car? yes i did Link to comment Share on other sites More sharing options...
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