Krambo Posted January 18, 2005 Report Share Posted January 18, 2005 Well, I went for my inspection last week and failed. It was the OBDII type of testing where they plug in the diagnostic equipment let the computer do the rest. Here is the quick story: Made the appointment for the inspection and fearing that they would fail me for having the check engine light on, I went to Autozone and had the codes read and cleared. I had 3 P0300 (random cylinder misfires) and one P0742 (transmission - I'll post that one in the tranny section). I knew that I would have several P0300 codes due to the aftermarket cam so I didn't give it too much thought. Well, the damn OBDII saw that I had an engine code cleared and would not advance to the next test....FAILED! I told the inspector that I had 2 bad plug wires and replaced them and cleared the code (didn't want to tell him that I had a non-emmissions cam in the truck). He said that the truck computer will need to "reset" by itself which usually happens after 100-150 miles, at which time I can be reinspected and if there is no code, then I will pass. The problem is that I ALWAYS get the misfire code. It even came on while the truck was sitting at the inspection garage. It seems to trip at idle especially when the truck is not warmed up. My idle is around 700RPMs. Should I bump up the idle? Can I place a grommet under the gas pedal to increase the idle and avoid tracking down LS1 Edit and reprogramming? Any help would be greatly apreciated! Link to comment Share on other sites More sharing options...
00z71sierra Posted January 18, 2005 Report Share Posted January 18, 2005 I would talk to Bryan at PCMforless (he is a sponsor here). He can probably tune the PCM or turn off certain things that will prevent the light from going on. We have this same test in NJ now and I failed because Bryan and his guys had disconnected my battery to rewire the electric fans through the PCM. The NJ DMV computer recognized that the PCM on the truck was not in "ready mode" and they failed me because their computer couldn't complete the cycle. Good luck, 00z71sierra Link to comment Share on other sites More sharing options...
chiel Posted January 18, 2005 Report Share Posted January 18, 2005 Better ask a comp. expert to put a virus in so they download it in to their computer while doing the check green mafia guys Link to comment Share on other sites More sharing options...
sdmf03 Posted January 19, 2005 Report Share Posted January 19, 2005 Well, I went for my inspection last week and failed. It was the OBDII type of testing where they plug in the diagnostic equipment let the computer do the rest. Here is the quick story: Made the appointment for the inspection and fearing that they would fail me for having the check engine light on, I went to Autozone and had the codes read and cleared. I had 3 P0300 (random cylinder misfires) and one P0742 (transmission - I'll post that one in the tranny section). I knew that I would have several P0300 codes due to the aftermarket cam so I didn't give it too much thought. Well, the damn OBDII saw that I had an engine code cleared and would not advance to the next test....FAILED! I told the inspector that I had 2 bad plug wires and replaced them and cleared the code (didn't want to tell him that I had a non-emmissions cam in the truck). He said that the truck computer will need to "reset" by itself which usually happens after 100-150 miles, at which time I can be reinspected and if there is no code, then I will pass. The problem is that I ALWAYS get the misfire code. It even came on while the truck was sitting at the inspection garage. It seems to trip at idle especially when the truck is not warmed up. My idle is around 700RPMs. Should I bump up the idle? Can I place a grommet under the gas pedal to increase the idle and avoid tracking down LS1 Edit and reprogramming? Any help would be greatly apreciated! <{POST_SNAPBACK}> Krambo...Do all GM dealers in our area do inspections through the computer?I just had my SS inspected at Brodheadsville Chevrolet and had no problems.Of course I dont have an aftermarket cam but...just wondered if you knew if all dealers did inspections like that. I'll keep an eye out for your SS...I work in Nazareth.Sounds like a nice ride! Link to comment Share on other sites More sharing options...
BenKey Posted January 19, 2005 Report Share Posted January 19, 2005 Your random misfire codes can be handled by adjusting the hit counts way up. This can only be done by editing software, though. Bump in idle may help some. Link to comment Share on other sites More sharing options...
6.0ss Posted January 19, 2005 Report Share Posted January 19, 2005 can you tune in a higher idle, say 800 rpm??? Link to comment Share on other sites More sharing options...
busterz Posted January 20, 2005 Report Share Posted January 20, 2005 Move to Western PA (non emissions county) - they dont look at things like that, only a quick visual check. Link to comment Share on other sites More sharing options...
Dylan06SS Posted January 20, 2005 Report Share Posted January 20, 2005 You guys have it rough over there... CA has emissions regs... but those tests sound like a major pain in the @$$! Link to comment Share on other sites More sharing options...
HDSliverado Posted January 21, 2005 Report Share Posted January 21, 2005 Just take the dash apart and take the SES light out! Then get it inspected! Link to comment Share on other sites More sharing options...
smithl3 Posted January 21, 2005 Report Share Posted January 21, 2005 I got a feeling that will never work Link to comment Share on other sites More sharing options...
radford175 Posted January 25, 2005 Report Share Posted January 25, 2005 Did you get your truck to pass yet Link to comment Share on other sites More sharing options...
Krambo Posted January 25, 2005 Author Report Share Posted January 25, 2005 I have 30 days from when I failed to get the computer to be in the "Ready Mode". I just installed another tune with some modifications to have the PCM record fewer misfires, increased the idle to 850, and some other stuff. So far no codes, however I would like to drive it for a few hundred miles. The PCM didn't like the cam at first but is settling down now. I'll keep you posted. Link to comment Share on other sites More sharing options...
BigTex Posted January 25, 2005 Report Share Posted January 25, 2005 All those items can be corrected by tuning. My cam is a tad larger than yours and I haven't seen an SES light yet. (knock on wood) Didn't Ken do your tune himself? The misfire count at idle should have been one of the first things corrected. You shouldn't have to "live" with the effects of the cam. They can really smoothed out to where it isn't really noticeable, Link to comment Share on other sites More sharing options...
fox_forma Posted January 26, 2005 Report Share Posted January 26, 2005 when they do inspection in Pa do they just hook the computer up and read off that or do they do the exhaust hook up also? Link to comment Share on other sites More sharing options...
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