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@throtl
 
ricks234's Avatar
 
Join Date: Mar 2009
Location: Solana Beach, CA
Posts: 1,158
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90 C2, Check Engine Light, How do I check it?

As the title states, 90 C2 with a check engine light. I searched the forums and the internet and could only find a method for 91 and newer. Does anyone know a method to check this, or am I going to have to buy a code reader?

Old 06-06-2010, 07:14 PM
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Join Date: Jun 2003
Location: Calgary Alberta, CANADA
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Hi,
You can't buy a reader for that car (unless you're willing to spend about $1000)
The easy route is to take it to the specialist garage and they should have the reader.
Or just unplug the battery for about 1/2 hour and voila! All codes will be removed.
It happened to me when I had a faulty O2 sensor, once replaced everything is perfect.
Ideally get the code prior deleting it.


good luck!
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Old 06-06-2010, 08:39 PM
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Location: Wilmington, NC USA
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Durametric makes a scanner for our cars but it does have limitations. Also there are a lot of us with home made scantool's.
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1990 964 C4 Cab
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Old 06-07-2010, 01:20 AM
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@throtl
 
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If there is a way to make a home made scan tool, please link me if possible!

I removed the lead on my battery in order to reset the code. I left the battery cable disconnected for 3 hours. Put the lead back on, code came right back! What code does not reset? I'm thinking faulty O2 sensor.
Old 06-12-2010, 05:41 PM
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Could be many things... You need the scan tool. Here's the mother of all scantool threads.
Diag interface & Software - Rennlist Discussion Forums
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We're all in the gutter,but some of us are looking at the stars.
-Oscar Wilde
Old 06-12-2010, 06:42 PM
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Bill Wagner on Rennlist wrote up this article about displaying CEL codes as flashing sequences of the CEL light. It has worked for me to diagnose an injector failure. Plus, it's FREE!

http://members.rennlist.com/billwagner/CheckEngine.html
Old 06-15-2010, 05:46 AM
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Will this work? Does it say 964's sold in 1991 and later which seems to me 1991 and newer cars?

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1990 964 C4 Cab
2008 Range Rover Sport (daily driver)
Old 06-15-2010, 04:12 PM
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