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CEL light arrggghh!

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Old 02-23-2008, 01:55 PM
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Taj
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Default CEL light arrggghh!

Took a friend out in the car yesterday......performed some spirited driving...even hit the rev limiter in one of the gears....all was fine. Filled up after work, the cap was on tight so again, no problems.

Drove 12 miles, accelerated into a road in second, hit an uneven bit of tarmac and the check engine light comes on, had just been on boost.

I am now thinking of getting myself an OBDII reader for my laptop...probably an ELM327 based unit with scantool or some other freeware...

Any quick and easy things to check?

Or do I just get the codes off it and go from there?

cheers.

Taj.
Old 02-23-2008, 02:34 PM
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How many miles on your car? Top end ever been redone?
CELs in 993tts' generally are not simple fixes I'm afraid.
Old 02-23-2008, 02:37 PM
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ca993twin
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Taj,

Get the code and you can gets lots of help. But... we must have that code.


<edit> Chris is always the first to say "top end". More than likely, if it occured on bumpy tarmac, its a bad ground connection, or other minor tidbit. Get the code.
Old 02-23-2008, 02:44 PM
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ScottMellor
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Has your wiring harness recall been done? That caused my only CEL light.
Old 02-23-2008, 02:53 PM
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ca993twin
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Perhaps a connector fell out of an O2 sensor? Get the code.
Old 02-23-2008, 04:29 PM
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Taj
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So, I will need to get a reader and will report back on the code.....will probably take a few days to get one. I really fancy the PC route as its possible to view engine parameters in realtime...kinda nerdy but i like the idea of that.

In reply to the questions a it has 100k on the clock, had a topend at 72k and piston rings as well as transmission overhaul.

I am not sure about the harness recall...how would I know and what is it?

cheers...
Old 02-23-2008, 04:33 PM
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My CEL at 100K was a bad O2 sensor.
Old 02-23-2008, 07:02 PM
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he may be referring to 100k as kilometers
Old 02-23-2008, 07:24 PM
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bb993tt
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Originally Posted by sfbanchs
he may be referring to 100k as kilometers
In England ... and in a RHD model? OK, maybe if he bought it in OZ, Japan or Singapore. Doubtful.
Old 02-24-2008, 05:40 AM
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Taj
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Miles dudes...had new turbos plus the work I mentioned at 70k miles ....so i figured ....worth a gamble.....just hope i'm right!
Old 02-24-2008, 05:33 PM
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Default she still boosts to 0.8bar even with a CEL

After a wash and vacuum i could not resist a gentle "investigative" drive.....she feels fine driving at low revs, just as responsive ....once she warmed up, she accelerated as normal and produced 0.8bar when driven hard.......CEL is still on.

I have the code reader on order. Could take up to 2 weeks from china! Will keep ya posted.
Old 02-24-2008, 05:43 PM
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Barney1
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If you have an local Auto Zone, they will read the code for free
Old 02-24-2008, 06:42 PM
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bb993tt
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Originally Posted by Barney1
If you have an local Auto Zone, they will read the code for free
I'll bet Steve McHale at JZMactech in Kings Langley would as well. It takes all of about 60 seconds to do. It's worth a phone call for peace of mind. Better than waiting two weeks.

Last edited by bb993tt; 02-24-2008 at 07:04 PM.
Old 02-24-2008, 10:19 PM
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Oh, Your in the UK, I don't think you have Auto Zone...sorry
Old 02-25-2008, 05:33 AM
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Taj
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Is it suprising that it still feels normal?


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