Mini wont start - backfiring

ZeroT · Post by **ZeroT** » Fri Mar 21, 2008 3:13 pm

I have finally had the time to install my MJ and got it all fitted this afternoon to my mini, MG 1275 standard angine.

First I fitted the crank sensor and started the car on the coil and dizzy and the laptop read back the rpm.

I then removed the dizzy and coil and fitted the rest of the EDIS4 setup.

The MJ has the default map on it.

Turned the key and after a few turns, bang! a loud back fire from the exhaust.

Tried a few more times and I get a mixture of bangs from the exhaust and backfires back thru the carb too but no chance of the engine starting.

Suggestions please!

Ken555 · Post by **Ken555** » Fri Mar 21, 2008 3:30 pm

Sounds like the timing is miles out.

where did you fit the toothed wheel / sensor.

Remember the gap should pass the sensor 90 degrees before Top Dead Centre.

Post by **brentp** » Fri Mar 21, 2008 3:36 pm

Also, ensure you have the coil pack firing order correct.

ZeroT · Post by **ZeroT** » Fri Mar 21, 2008 3:38 pm

I have connected coil pack number 1 to spark number 1, far right of mini engine.

And then the coil pack numbers 2, 3, 4 to sparks 2 3 4 numbering from the right.

ZeroT · Post by **ZeroT** » Fri Mar 21, 2008 4:20 pm

ok, resolved, looks like coils A & B were firing the wrong way round

Post by **brentp** » Fri Mar 21, 2008 5:55 pm

Don't worry, a couple of weeks ago I was in a rush connecting wires and experienced the same exact thing.

charlie · Post by **charlie** » Mon Apr 07, 2008 3:54 pm

Me too. Exact same thing.