snwbrdjunky Posted August 18, 2008 Share Posted August 18, 2008 I have an 01 LGT and due to exhaust work my check engine light is always on. I hear if you pull the bulb for the check engine light you can pass easy, is this true for Oregon emission standards? If so does anyone have an easy walkthrough? Link to comment Share on other sites More sharing options...
bluesuby Posted August 18, 2008 Share Posted August 18, 2008 What kind of "exhaust work", doing away with oxygen sensors? I don't know Oregon's procedures, but with post late 90s OBD2, the inspector will probably just plug into the diagnostic connector and read the codes. Link to comment Share on other sites More sharing options...
ehsnils Posted August 19, 2008 Share Posted August 19, 2008 Get a code reader (Sears has them) and read the code and try to figure out a workaround for it. Then reset the codes and you should be OK. Link to comment Share on other sites More sharing options...
snwbrdjunky Posted August 20, 2008 Author Share Posted August 20, 2008 Any idea how much the code readers are? And how would I just reset the code, is it easy to figure out? Link to comment Share on other sites More sharing options...
Bbc84 Posted August 20, 2008 Share Posted August 20, 2008 if u have Autozone in your area, they can read the code and reset it for free Link to comment Share on other sites More sharing options...
stanjk3 Posted August 20, 2008 Share Posted August 20, 2008 You can also buy code readers at Amazon for ~$100. [ame=http://www.amazon.com/Equus-3100-Diagnostic-Post-1996-Vehicles/dp/B000EVWDAK/ref=pd_bbs_sr_3?ie=UTF8&s=automotive&qid=1219212516&sr=8-3]Amazon.com: Equus 3100 Innova Diagnostic Code Reader with Memory Backup for OBDII (Post-1996) Vehicles: Automotive[/ame] The one I have is similar to this- [ame=http://www.amazon.com/Actron-CP9175-AutoScanner-Diagnostic-Post-1996/dp/B000FJS8O6/ref=pd_bbs_sr_5?ie=UTF8&s=automotive&qid=1219212516&sr=8-5]Amazon.com: Actron CP9175 AutoScanner Diagnostic Code Scanner with Freeze Frame Data for OBDII (Post-1996) Vehicles: Automotive[/ame] Yes there are cheaper ones but they just give you the code without any explanation. Pulling the check engine light bulb won't work, the code is still in the computer. You can clear the code, but if you don't fix the problem the CEL will come back on. And you have to drive for a certain amount of miles or cycles (not sure which it is) before any monitors clear. I'm guessing you either have to replace a sensor, or buy a 'simulator' sensor. Friends don't let friends drink cheap beer. Link to comment Share on other sites More sharing options...
ehsnils Posted August 20, 2008 Share Posted August 20, 2008 I have a 9175 myself - $175 or so at Sears, but when I need it I will be happy to have it, and it has already been used on a friend's 4runner. Link to comment Share on other sites More sharing options...
snwbrdjunky Posted August 20, 2008 Author Share Posted August 20, 2008 You can also buy code readers at Amazon for ~$100. Amazon.com: Equus 3100 Innova Diagnostic Code Reader with Memory Backup for OBDII (Post-1996) Vehicles: Automotive The one I have is similar to this- Amazon.com: Actron CP9175 AutoScanner Diagnostic Code Scanner with Freeze Frame Data for OBDII (Post-1996) Vehicles: Automotive Yes there are cheaper ones but they just give you the code without any explanation. Pulling the check engine light bulb won't work, the code is still in the computer. You can clear the code, but if you don't fix the problem the CEL will come back on. And you have to drive for a certain amount of miles or cycles (not sure which it is) before any monitors clear. I'm guessing you either have to replace a sensor, or buy a 'simulator' sensor. So if I clear the code the engine light will come back on, but I can still pass DEQ if I unplug my battery overnight right? When I unplug it the light will go off and stay off for a couple days. Would this work? Link to comment Share on other sites More sharing options...
Max Capacity Posted August 20, 2008 Share Posted August 20, 2008 Depends. Yes it will clear the code. Yes the tester may be able to tell that the car has not been driven enough for the ECU to run it's checks. Now my story. 97 Suburban, CEL is on all the time, truck runs like a top. I drove the truck to work, pulled the battery cable. 8 hours later, drive the truck 1.5 miles to test station. While I'm waiting for my turn, I hear the guy tell this person with a late 90's Pontiac Bonneville it looks like someone has pulled the cable and the ecu has not had time to run it's checks. I thought oh well. A few minutes late the guy says your all set, passes fine. I said thanks and smiled. I know my CEL is something about low something with right O2 sensor, may be code 140 or ...who cares it runs great. I got 20 months before I have to worry about it. My CEL comes on after about 20-25 miles of driving 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
snwbrdjunky Posted August 20, 2008 Author Share Posted August 20, 2008 Well then if that worked for you mine should pass fine too, wish me luck and thanks for the help everyone Link to comment Share on other sites More sharing options...
Max Capacity Posted August 20, 2008 Share Posted August 20, 2008 It's worth a shot... 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
ehsnils Posted August 21, 2008 Share Posted August 21, 2008 Depends. Yes it will clear the code. Yes the tester may be able to tell that the car has not been driven enough for the ECU to run it's checks. Now my story. 97 Suburban, CEL is on all the time, truck runs like a top. I drove the truck to work, pulled the battery cable. 8 hours later, drive the truck 1.5 miles to test station. While I'm waiting for my turn, I hear the guy tell this person with a late 90's Pontiac Bonneville it looks like someone has pulled the cable and the ecu has not had time to run it's checks. I thought oh well. A few minutes late the guy says your all set, passes fine. I said thanks and smiled. I know my CEL is something about low something with right O2 sensor, may be code 140 or ...who cares it runs great. I got 20 months before I have to worry about it. My CEL comes on after about 20-25 miles of driving Your '97 is an OBD-II, while the Bonneville is an OBD-I, which means that there are different procedures involved. I suspect that they actually did measure the emissions on that car while they were satisfied by reading the codes on your. Link to comment Share on other sites More sharing options...
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