Codes 8 and 17 car dead.

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fanman
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Codes 8 and 17 car dead.

Post by fanman » Tue Feb 13, 2018 4:47 pm

Car cut out whilst driving. RAC man couldn't fix. Baffled he was :badgrin:
Have spark and fuel. 8)
Pulled codes 8 (MAF) and 17 (O2 sensor). :cry:

I find it strange that both should fail at exactly the same time - or does one failing cause the other to show a code? :?: :?:
Would failure of either/both actually prevent the car from starting though? :?: :?:

What to do first is my question :?: - any thoughts welcome.

Working nights atm so apologies if I don't reply immediately and cant work on car for a while.

Many thanks in advance.....
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jrh
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Re: Codes 8 and 17 car dead.

Post by jrh » Tue Feb 13, 2018 5:12 pm

The O2 sensor won't stop the car , both mine went years ago, if anything the mpg improved !
IF the MAF is faulty, it will kill the engine.

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Re: Codes 8 and 17 car dead.

Post by fanman » Tue Feb 13, 2018 10:12 pm

jrh wrote:The O2 sensor won't stop the car , both mine went years ago, if anything the mpg improved !
IF the MAF is faulty, it will kill the engine.

Thanks! Will try to source another MAF.
I have a spare O2 but will do the MAF first and see if that works.

Cheers man
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Jon G 24V
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Re: Codes 8 and 17 car dead.

Post by Jon G 24V » Tue Feb 13, 2018 10:14 pm

Faulty MAF as said will stop an engine but a New O2 sensor wouldn't go a miss :wink:
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Re: Codes 8 and 17 car dead.

Post by fanman » Tue Feb 13, 2018 11:07 pm

Jon G 24V wrote:Faulty MAF as said will stop an engine but a New O2 sensor wouldn't go a miss :wink:
Cool. Thanks so much Jon. Any advice on where to source a good replacement? Seems like a lot are 'made in China' Lol
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Re: Codes 8 and 17 car dead.

Post by jrh » Wed Feb 14, 2018 8:30 am

Take the MAF unit off first and make sure it hasn't just stuck open/shut.
Maybe as simple as that.

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Re: Codes 8 and 17 car dead.

Post by Jon G 24V » Thu Feb 15, 2018 11:34 am

If you do find anything wrong with it then a good second hand one would be your best and cheapest bet :wink:
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Re: Codes 8 and 17 car dead.

Post by fanman » Thu Feb 15, 2018 11:49 am

Jon G 24V wrote:If you do find anything wrong with it then a good second hand one would be your best and cheapest bet :wink:
One on the way soon from Kit! Even if it isn't the MAF it will be good to have a spare!
Cheers Jon
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Re: Codes 8 and 17 car dead.

Post by fanman » Thu Feb 15, 2018 8:06 pm

Borrowed a MAF and tried. Still not starting!
Engine turns over fine.
As far as I can tell I have fuel getting through and injectors are pulsing.
Spark on all 4 plugs.
Baffled!
Help! :lol:
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Re: Codes 8 and 17 car dead.

Post by jrh » Fri Feb 16, 2018 7:28 am

Air,fuel,source of ignition, has to run IF the timing is right.
You're missing something ?
Check all the basic needs, oil, water levels.

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Re: Codes 8 and 17 car dead.

Post by fanman » Fri Feb 16, 2018 7:39 am

jrh wrote:Air,fuel,source of ignition, has to run IF the timing is right.
You're missing something ?
Check all the basic needs, oil, water levels.
Thinkin engine timing - checking today!
I have had a cambelt slip in the past on another probe - may be same thing?
Will keep you posted 8)
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Re: Codes 8 and 17 car dead.

Post by Jon G 24V » Fri Feb 16, 2018 12:22 pm

fanman wrote:
jrh wrote:Air,fuel,source of ignition, has to run IF the timing is right.
You're missing something ?
Check all the basic needs, oil, water levels.
Thinkin engine timing - checking today!
I have had a cambelt slip in the past on another probe - may be same thing?
Will keep you posted 8)
Tensioner on a 16V is only a spring so it's possible.
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fanman
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Re: Codes 8 and 17 car dead.

Post by fanman » Fri Feb 16, 2018 1:49 pm

Jon G 24V wrote:
fanman wrote:
jrh wrote:Air,fuel,source of ignition, has to run IF the timing is right.
You're missing something ?
Check all the basic needs, oil, water levels.
Thinkin engine timing - checking today!
I have had a cambelt slip in the past on another probe - may be same thing?
Will keep you posted 8)
Tensioner on a 16V is only a spring so it's possible.
Looks like I've got low compression on most pots. Figures (from memory) were around 110, 90, 145, 110. What are the book figures? Guessing belt may have either slipped or shed a tooth?
There's no stoppin the cretins from hoppin..
Hey ho lets go !!!

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