Help - Got a CEL P0300 Tonight

[naasif]

HI all,

While driving home this evening when the Check Engine Light started to flash then stayed on. Scared the crap out of me as I've never had this before.

I was reluctant to pull over and and restart the car just in case it wouldn't start again so I drove home very carefully. (The thought of being stuck on a freeway with wife and 2kids had crossed my mind)

Scan tool shows it as a P0300 - Random/Multiple Cyclinder Misfire Detected and from a previous thread listing the OBD codes - P0300 Random misfire detected Flash/ON 2 Misfire.

I cleared the code and then took the car around the block. It hasn't come back again this evening.

Nothing has changed since the Hypertech tune went in last month and the only other mod is the MZR SRI prior to the Hypertech.

Can anyone shed any light on this and point me in the direction of where to start troubleshooting ... please ?

[TD]

Fuel, spark, coils, leads etc?

Never heard of anyone getting that one before...

[naasif]

Fuel...same place I always fill up...Shell Optimax.
I'll check the leads to make sure nothing has come off.

Will take it for a drive today and see how it goes. I'm hoping it doesn't return and was just a once off.

[Nirvandan]

Return it back to stock tune and take it to mazda for a check.