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Car Forum / Mazda / Mazda Cars / January 2004

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2001 Protege

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Nick - 20 Jan 2004 02:23 GMT
Hello all,

    I'm trying to help a friend out to try to diagnose a problem on
his 2001 Protege. He has about 60k on the car and he is noticing the
following problem.

-if i start the car in the morning and drive continuously, there is no
issue
-if i have driven it, shut it down...when i restart it boggs down and
misses until i start driving it down the road and it comes back to life

I had him reset the ECU but the check engine light and problem still
persists. Do you think that it is possible that the spark plug wires are
bad? He has replaced the spark plugs and none of them showed any
deteriorations.  If this was the case, wouldn't the problem happen all
of the time? Any other suggestions?

Also I know on Honda's there is a way to short out 2 pins using a paper
clip on the ODB port and reading out the check engine light for the
error code. Is there anything similar on this Protege?

Thanks for all the help in advance,

Nick
dooker - 20 Jan 2004 23:17 GMT
It would help to know the engine size ... if it is the 2 liter the most
likely cause is the egr valve ... they would stick open at times .... Mazda
has modified them to help prevent this ....

> Hello all,
>
[quoted text clipped - 20 lines]
>
> Nick
Nick - 21 Jan 2004 11:43 GMT
Sorry it is a 1.8l.

>It would help to know the engine size ... if it is the 2 liter the most
>likely cause is the egr valve ... they would stick open at times .... Mazda
[quoted text clipped - 24 lines]
>>
>> Nick
Nick - 21 Jan 2004 13:59 GMT
The model year is also a 2000 not a 2001. My apologies.

>It would help to know the engine size ... if it is the 2 liter the most
>likely cause is the egr valve ... they would stick open at times .... Mazda
[quoted text clipped - 24 lines]
>>
>> Nick
dooker - 21 Jan 2004 22:17 GMT
The 1.8 engine had the same EGR valve ....so ... it is still a possibility.
The only way to test the valve without the car acting up is to have a proper
diagnostic tester to command the valve open & closed .... when this is done
the valve will usually stick if it is faulty.

> The model year is also a 2000 not a 2001. My apologies.
>
[quoted text clipped - 30 lines]
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