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MazdaSpeed 3/6 - Troubleshoot/Diagnostics MazdaSpeed 3/6 - Troubleshoot/Diagnostics - Have a problem with the car? CEL Code? Want to discuss other issues? Come on in!


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 Old 12-13-2019, 01:00 AM   #1
 
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Default Engine shuts off during high speed driving

Dear fellow forum members!

Today I was driving around 160 kph, and put the car in neutral.
The RPM dropped to 0, and the battery and cel were lightning up.

After that I put the car in gear and everything was back to normal.

Every electronics in the car still worked no problem, but the engine simply shut off.

Tried to replicate it, but I can't get the car to do it while going slower.

Read the ECU codes, but nothing was found. No CEL lights after that, only while the enginge was shut off during driving.

What should I check for, do you guys have any similiar experiences?

I will do more testing later, but I'd like some ideas what to check first.
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 Old 12-13-2019, 07:09 AM   #2
 
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Default

Check that there are no leaks or unmetered air coming in from the intake. Check that all clamps on the intake are tight.

If you're able to replicate the problem, log it if you have an AP. If any CEL come on, post what they are as well

What modifications are done to the car?
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Last edited by Witness; 12-13-2019 at 09:02 AM.
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