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#4486675 - 08/12/17 05:00 PM Confess if you drive around with your CEL on
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
As the title states confess here if you drive around with the check engine light on
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too many cars and oil combinations to list in 150 characters or less

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#4486679 - 08/12/17 05:16 PM Re: Confess if you drive around with your CEL on [Re: L_Sludger]
bioburner Offline


Registered: 09/19/16
Posts: 1418
Loc: Minnesota
Yes, my Xterra has to go through several cycles before going out after I tripped the antifreeze level after changing and attempting to purge the air out of system
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97 Ford E350 D,99 F350 dually D
13 Scion Xb
12 Ford Transit Connect
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#4486680 - 08/12/17 05:16 PM Re: Confess if you drive around with your CEL on [Re: L_Sludger]
TinyVoices Offline


Registered: 09/12/16
Posts: 465
Loc: Vienna, VA
My mk4 GLI had the dreaded p0420 code. These cars had this code very often and sometimes it was a false positive. I had no vacuum leaks, good and operational o2 sensors, good MAF and a functioning cat. Car ran great. Drove with the light on for that code for 80k miles.
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1993 Toyota MR2 Hardtop N/A - 157k miles - Valvoline Max Life 5w30
2006 Toyota Matrix XR AWD (Fiancee) - 126k miles - Valvoline Max Life 5w30

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#4486683 - 08/12/17 05:18 PM Re: Confess if you drive around with your CEL on [Re: L_Sludger]
bdcardinal Offline


Registered: 06/03/05
Posts: 10809
Loc: Santa Barbara, CA
I did on my 98 Mustang. It had a P0420 code from when I put an offroad x-pipe on it. The sound and power was worth it.
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1995 Ford Mustang GT

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#4486685 - 08/12/17 05:20 PM Re: Confess if you drive around with your CEL on [Re: L_Sludger]
Rick in PA Offline


Registered: 01/04/03
Posts: 3197
Loc: Southeastern, PA
Of course I wouldn't drive around with the CEL light on. I'd get one of those cheap little code readers, permanently mount it in the car, and clear the code as soon as it occurred. Perhaps even while driving. "Clearing codes on the fly."

Seriously, no, I generally fix any code throwing problems as soon as I can get to it.
_________________________
A wise man told me:
"Heat is your friend." and "Any oil is better than no oil."

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#4486687 - 08/12/17 05:21 PM Re: Confess if you drive around with your CEL on [Re: L_Sludger]
Chris142 Online   content


Registered: 06/05/03
Posts: 16530
Loc: Deplorable in apple valley, ca
My wifes piece of junk chevy is always throwing some code. Usually its from the ill designed evaporative emissions system.

I pretty much gave up fixing that piece of garbage.
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#4486690 - 08/12/17 05:23 PM Re: Confess if you drive around with your CEL on [Re: L_Sludger]
14Accent Offline


Registered: 08/03/17
Posts: 334
Loc: MN
Sure do. My Marauder throws EGR flow codes because the DPFE sensor is bad. EGR valve works fine, but the sensor is integrated and I don't feel like spending $130 on an entire valve.

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#4486694 - 08/12/17 05:31 PM Re: Confess if you drive around with your CEL on [Re: L_Sludger]
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
My cars: Most of them have the CEL on for one reason or another. Oh well happy
_________________________
too many cars and oil combinations to list in 150 characters or less

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#4486697 - 08/12/17 05:34 PM Re: Confess if you drive around with your CEL on [Re: TinyVoices]
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
Originally Posted By: TinyVoices
My mk4 GLI had the dreaded p0420 code. These cars had this code very often and sometimes it was a false positive. I had no vacuum leaks, good and operational o2 sensors, good MAF and a functioning cat. Car ran great. Drove with the light on for that code for 80k miles.


_________________________
too many cars and oil combinations to list in 150 characters or less

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#4486698 - 08/12/17 05:38 PM Re: Confess if you drive around with your CEL on [Re: L_Sludger]
JimPghPA Online   content


Registered: 08/22/09
Posts: 3824
Loc: Pittsburgh,PA U.S.A.
A couple of weeks ago the "service engine soon" light came on, on out 2001 Impala. I puled into Advance Auto and borrowed their code reader and there were no codes. That light went out and has not come back on and I still have no clue why it was on.


Edited by JimPghPA (08/12/17 05:42 PM)
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Boy will I be happy when ALL vehicles on public roads are autonomous.


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#4486699 - 08/12/17 05:41 PM Re: Confess if you drive around with your CEL on [Re: L_Sludger]
E150GT Offline


Registered: 03/11/12
Posts: 1039
Loc: San Antonio, TX
I can't do it. Just can't. On the Mazda its new and if it comes on I'll address it. On the truck, every time its come on its only been for something that is debilitating so it has to get fixed. Last one was a bad MAP sensor. Mercedes pre dates CEL's.
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1984 Mercedes-Benz 300SD - 100k
1995 F150 XL 4.9 reg cab 5 speed - 247k 5w30
2016 Mazda 6 manual 6speed - 46k 5w30

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#4486702 - 08/12/17 05:45 PM Re: Confess if you drive around with your CEL on [Re: JimPghPA]
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
Originally Posted By: JimPghPA
A couple of weeks ago the "service engine soon" light came on, on out 2001 Impala. I puled into Advance Auto and borrowed their code reader and there were no codes. That light went out and has not come back on and I still have no clue why it was on.
could be a gas cap left loose.
_________________________
too many cars and oil combinations to list in 150 characters or less

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#4486703 - 08/12/17 05:45 PM Re: Confess if you drive around with your CEL on [Re: L_Sludger]
Warstud Online   content


Registered: 09/02/05
Posts: 5200
Loc: MIchigan
1) Faulty Air Pump
2) TPMS light
3) Brake Light


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#4486710 - 08/12/17 05:51 PM Re: Confess if you drive around with your CEL on [Re: L_Sludger]
aquariuscsm Offline


Registered: 12/30/06
Posts: 17930
Loc: South Texas,USA
My dad and my gf's dad both just covered theirs up with a piece of black electrical tape haha laugh
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1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Pennzoil Platinum 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Pennzoil Platinum 0W20



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#4486714 - 08/12/17 05:58 PM Re: Confess if you drive around with your CEL on [Re: aquariuscsm]
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
Originally Posted By: aquariuscsm
My dad and my gf's dad both just covered theirs up with a piece of black electrical tape haha laugh
Nice.
The only time a check engine light got really severe for me was with a faulty coil pack on a Toyota Echo. That CEL actually blinked. The car was misfiring and dumping fuel into the cat - a worthwhile alarm for sure.
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