Service engine light keeps reappearing
#1
Service engine light keeps reappearing
Just after doing a TB and MAF cleanup, suddenly the service engine engine keeps reappearing, even after the diagnostic 0505 indicates all clear.
After clearing the code, the service engine light comes back.
Any ideas?
After clearing the code, the service engine light comes back.
Any ideas?
#2
you need to go get it scanned with one of those diagnostic scanners. If your lucky, Autozone in your area can still do it for you for free. This happened to me where the 0505 code kept coming up. I finally got it scanned and it turned out to be an 02 sensor that was intermittently failing....
#5
I changed the bottom oxygen sensor near the catalytic converter last year, so its the upstream left and right in the engien compartment?
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Interesting that all this started just after I cleaned the throttle and MAF. Maybe a vacuum leak, there is a little bit of idle.
Only the dealer can really do a proper scan?
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Interesting that all this started just after I cleaned the throttle and MAF. Maybe a vacuum leak, there is a little bit of idle.
Only the dealer can really do a proper scan?
Last edited by holymoly; 07-23-2011 at 09:00 AM.
#6
Not true. Go to advanced/autozone, their scanner may pick up something that another handheld does not.
Then call around to local shops. Ask if anyone has a Modus, Verus, or any other computer based scan tool. They're more comprehensive in their coverage.
Then call around to local shops. Ask if anyone has a Modus, Verus, or any other computer based scan tool. They're more comprehensive in their coverage.
#7
not sure why it is happening but my evap leak causes my MIL to come on and off.
#8
The turning of the screw method, from what I know, reads active DTCs. It wont read stored codes, which is why you got nothing until using the scanner.
Not sure why it causes the MIL to turn on and off, guess I was wrong.
Not sure why it causes the MIL to turn on and off, guess I was wrong.
#9
You have a website?
#11
I hope the car should hold out, a likely O2 sensor can wait.
#12
UIM or LIM leak will also do this, and it can give several different codes. Most likely, the code you'll get will be 0174 or 0175 (oxy sensor). I've been having this issue for a LONG time now and my mpg's suck, but I'm not too worried about it and when I find the time, I'll do the IM gaskets.
#14
UIM or LIM leak will also do this, and it can give several different codes. Most likely, the code you'll get will be 0174 or 0175 (oxy sensor). I've been having this issue for a LONG time now and my mpg's suck, but I'm not too worried about it and when I find the time, I'll do the IM gaskets.
UIM or LIM leak?
Just remember, all this started just after I did a throttle body and MAF sensor clean. Pretty sure I reassembled evertyhing...
#15
Did you replace the gasket for the TB? Any possible leaks from the vacuum hoses? Sometimes the end of the hose might look ok, but it can be split and causing a leak.
#16
#17
#18
Did a another OBC check and a 13-02 code was returned.
Manifold Absolute Pressure (MAP) solenoid valve or circuit fault.
I will pick one up at Autozone for $80.
Does this require an immediate fix?
Manifold Absolute Pressure (MAP) solenoid valve or circuit fault.
I will pick one up at Autozone for $80.
Does this require an immediate fix?
#21
well I'm back from the states, had scans done at both Autozone and Advanced Auto. They look like Partsource up here only better.
Both were showing MAP sensor and EGR value flags.
But I informed the guy all this happens just after I do a TB clean.
He tells me don't change anything and look for vacuum leaks.
Sure enough, the air inlet duct small hose was not connected, it was instead connected to the inlet at the TB, who short hose was hidden behind all this.
I say this as this Britney (I did it again) moment can happen to you too.
P.S. Service engine soon light mysteriously disappeared.
Both were showing MAP sensor and EGR value flags.
But I informed the guy all this happens just after I do a TB clean.
He tells me don't change anything and look for vacuum leaks.
Sure enough, the air inlet duct small hose was not connected, it was instead connected to the inlet at the TB, who short hose was hidden behind all this.
I say this as this Britney (I did it again) moment can happen to you too.
P.S. Service engine soon light mysteriously disappeared.
#22
i just had changed my knock sensor and all 3 of my o2 sensors (my car is federal emissions) and now i have a code for evap .... how would i find out where this 'leak' is and how to get the ses light off so i can pass ny inspection!??!
#23
Several different evap codes that point to different things. Would help if you post actual codes.
#24
Keep checking you got evertyhing back where its supposed to be.
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