check engine light

[ryder]

I notice that a number of you have also (had) problems with the check engine light. What was the origin of this and what was done to fix it?

My CEL problem:
My check engine light has been on ever since I had 200km (I now have 4000km after 1 month). In my case it seems to be related to the mass airflow sensor which will finally be replaced by the dealer later this week. I hope this fixes the problem.

Haven't had any other problem.
Great driving (nana)
by the way, I have a diesel engine.

 

[Mikey444]

Take it to the dealer to get it checked.

 

[bvmazda3]

Take it to the dealer to get it checked.

When he said that his dealer was going to try replacing the suspect part, I am quite sure he has already alerted the attention of his dealer.

I believe he was looking for useful information about other owners experiences with CEL's, not some unintelligent and obvious advice.

~Bart~

 

[Loose]

Ya don't say.

When he said that his dealer was going to try replacing the suspect part, I am quite sure he has already alerted the attention of his dealer.

I believe he was looking for useful information about other owners experiences with CEL's, not some unintelligent and obvious advice.

~Bart~

LOL (screwy)

 

[joepro]

Well, my CEL went on again last night. I took it in and they flashed my ECU, again. This time, it's code P0442 "Evap System Small Leak Detected Fault". They placed an order for a "solenoid evap". wtf is that? And what could've caused this in the first place? Anybody else have an issue like this?

 

[crossbow]

There is a MRI (Mazda repair information) out for that particular issue. Its pretty widespread if they've got dealer data on it.

Btw there are over 100 CEL codes available for the 3. If you get a code, please post the code, otherwise nobody has any idea how to help you.

Example...sine joepro gave me his code...I can pull the data like this.

MIL ON - P0442/P0455/P0456

Applicable Models

<TABLE width="75%" border=1><TBODY><TR><TD width="50%">Model </TD><TD width="25%">Starting S/N </TD><TD width="25%">Ending S/N </TD></TR></B><TR><TD>[size=-1]2004 MAZDA3 [/size]</TD><TD>[size=-1]00000000[/size]</TD><TD>[size=-1]ZZZZZZZZ[/size]</TD></TR></TBODY></TABLE>

Some vehicles may exhibit a MIL ON condition with DTCs P0442, P0455,
and/or P0456 stored in memory. See the following list for possible
causes.

Capture freeze frame data, then clear all DTCs. Run the WDS evaporative
system test to confirm the leak. If vehicle fails, use the Mazda
approved, EVAP Tester (Model #134-01049) to further diagnose. Activate
Mode 8 to manually close the Change Over Valve (COV). Note that
the purge solenoid valve is Normally Closed. Run the gas leak test and
the smoke test to confirm leak location.

On Mazda3, the following conditions have been found:

o STUCK OPEN PURGE SOLENOID VALVE - Confirm by removing purge
solenoid control valve hose at the intake manifold, then inspect
to see if smoke exits from the hose. If smoke is seen, this
indicates a valve that is stuck open.

Note: If hose is not removed, smoke may not be seen anywhere, and
it will appear the vehicle has no leak.

o MISSING "BASKET" SEAL - A smoke test will reveal if a basket seal is missing from a quick disconnect fitting.

http://www.mazdatechinfo.com

 

[joepro]

Thanks for the info Crossbow! I'm probably not the only one with this problem if there's a bulletin about it.

 

[Crusher]

I had the same problem with mine. It was replaced last month and the CEL hasn't come back on since then.

 

[styles_t]

does the dealer charge to replace the CEL

 

[crossbow]

Only if its caused by an aftermarket modification (Or your out of warranty).