[MR2] Mk1 Check Engine Light on Decel and Fuel Leak

DAVIES, BARRY S (BARRY) daviesb at alcatel-lucent.com
Thu May 7 12:40:32 EDT 2009


I agree with Dave on the CEL. I have a similar problem on a MK1 -
driving at constant speed, around 60mph, the light will come on.
Decelerating, or blipping the throttle turns it off. 
The stored code indicates O2 sensor. One day I'll replace it.

As for the fuel leak, another place to check are the connections to the
vapour trap thingy (that weird bit of plumbing that goes vertically up
the firewall behind the black carboard shroud) . I've had the hose
clamps where it joins onto the fuel tank come loose and had a leak
there.
Cheers
Barry


-----Original Message-----
From: mr2-bounces at mr2.com [mailto:mr2-bounces at mr2.com] On Behalf Of
Hawkley, Inc.
Sent: Thursday, May 07, 2009 7:31 AM
To: Steve
Cc: mr2 at mr2.com
Subject: Re: [MR2] Mk1 Check Engine Light on Decel and Fuel Leak

You should still be able to check the code.  Most codes are stored in
the ECU whether the light stays on or not.  My guess is that your
O2 sensor may be showing its age.

The filler tube on the gas tank is rubber and subject to deterioration.
Since it doesn't leak when the car faces downhill, I'd look at this area
on the tank since it's at the back.

Hope this helps.

David Hawkins
http://twosrus.com

Steve wrote:
> I was driving my MR2 home, from AZ to NH, and I have noticed two 
> problems over the 3000 mile trip.
>
> When decelerating on the highway the check engine light will come on 
> sometimes. When you press the gas pedal again it goes off. I can't 
> pull the code because it never stays on long enough. Any thoughts?
>
> Also, after filling the car with gas, if it is parked on a level 
> surface it will drip gas from underneath the car. If I park it sloping

> down toward the front there are no leaks. This is easy enough for me 
> to figure out I am just curious if anyone else has had to deal with
this?
>
> Steve
>
>
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>   

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