scottyg Posted April 17, 2010 Report Share Posted April 17, 2010 hey guys my 01 sts is idiling rough and giving a po300 code with the ses blinkin occasionally..i also am showing a po410(air pump) are these ralted.and any ideas on the 300 code? Link to comment Share on other sites More sharing options...
Texas Jim Posted April 17, 2010 Report Share Posted April 17, 2010 P0300 is an intermittent miss. I would start by checking the wires and plugs. Link to comment Share on other sites More sharing options...
scottyg Posted April 17, 2010 Author Report Share Posted April 17, 2010 the plugs only have about 50k on them and they are delco platinums,but ill check them out..do you think the po410(air pump)code is related? Link to comment Share on other sites More sharing options...
Texas Jim Posted April 17, 2010 Report Share Posted April 17, 2010 the plugs only have about 50k on them and they are delco platinums,but ill check them out..do you think the po410(air pump)code is related? It is possible that the AIR pump code is related... but I don't think it very likely. The P0410 code is ... Secondary Air Injection (AIR) System. The AIR pump sends additional air into the exhaust system to bring the CATS up to operating temp quicker. Be sure to check to make sure all of the wires are seated well on the plugs. Check to make sure there is not a chafed wire. Check the connections to the coils also. Link to comment Share on other sites More sharing options...
scott y Posted April 17, 2010 Report Share Posted April 17, 2010 If you've an '01 then it won't have wires,it's thecoil on plug cassette type which unless something didn't go back together properly when you installed the new plugs should not be the problem. Link to comment Share on other sites More sharing options...
Texas Jim Posted April 17, 2010 Report Share Posted April 17, 2010 If you've an '01 then it won't have wires,it's thecoil on plug cassette type which unless something didn't go back together properly when you installed the new plugs should not be the problem. Thanks, Scott. I forgot about that. Link to comment Share on other sites More sharing options...
scottyg Posted April 17, 2010 Author Report Share Posted April 17, 2010 yeah i have coil packs..i changed the plugs about a year ago..but i guess it couldnt hrt to check them,its easy.. Link to comment Share on other sites More sharing options...
Ranger Posted April 18, 2010 Report Share Posted April 18, 2010 Blinking SES light means a severe misfire has been detected. Link to comment Share on other sites More sharing options...
scottyg Posted May 9, 2010 Author Report Share Posted May 9, 2010 i changed the plugs today,they were a little burnt up..they had some oil around thr the tops but the electrodes were nice tan color just a little burnt..it ran good for about an hour then the blinking ses(misfire) came back on..any ideas? Link to comment Share on other sites More sharing options...
BSchlossmann Posted May 9, 2010 Report Share Posted May 9, 2010 Carefully inspect the wires to go to each injector. I had a pair that burned up on the #2 cylinder, and caused misfires on the entire front bank. This caused the SES light to set then to blink rapidly. Mind had more codes set than just the P0300. Link to comment Share on other sites More sharing options...
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