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Help!!! Can't get all 4 cylinders to fire...
stevebubs - 4/6/05 at 09:57 PM

Right,

Zetec; Wasted Spark; Emerald EFI

I've got 3 and 4 firing all the time now, so have a decent inline 2 engine.

When I rev above about 2000rpm, #2 kicks in, too

#1 stays cold.

So far...
1) Not injectors - proven
2) Not plugs - swapped around, and tried some new ones

Any ideas? Coil not quite up to scratch? Leads (new Bosch ones fitted atm)?

This is really weird as 1, 2 and 4 were all working the other day, and 3 wasn't....tracked that down to injector not firing; injectors since changed.

Getting really frustrated as this is all that's stopping me from getting an MOT

davidwag - 4/6/05 at 10:04 PM

Hi i,m running a 2 litre zetec on emerald management too, but in a MK1 Fiesta hillclimber.
Have you tried squirting some easy start into the miss firing cylinders with the engine running?
If it momentarely cures the miss fire then you know its fuel if not then its spark.
David

stevebubs - 4/6/05 at 10:07 PM

quote:
Originally posted by davidwag
Hi i,m running a 2 litre zetec on emerald management too, but in a MK1 Fiesta hillclimber.
Have you tried squirting some easy start into the miss firing cylinders with the engine running?
If it momentarely cures the miss fire then you know its fuel if not then its spark.
David


Good idea - didn't think of this; will get some in the morning.

Pretty sure it's not fuel, though as we removed the rail and let the injectors spray into the atmosphere....all seemed to be firing equally.

Out of interest, what advance are you running for idle? (any chance I can pilfer a look at your map?)

Thx

Stephen

davidwag - 4/6/05 at 10:17 PM

Hi,
Can't remember idle advance figures at the moment and just had a look at the files on my computer and i don't seem to have saved my current set up, but i'll download the map from the ecu tomorrow and check.
David

stevebubs - 4/6/05 at 10:22 PM

Ta: stephen @ bubs . net

britishtrident - 5/6/05 at 10:21 AM

Unlikely but the first thing to check would be that 1 & 2 plug leads aren't swapped over.

Another suspect would be Sticking/bent valves tor hydraulic tappets pumping up ?

tks - 5/6/05 at 12:03 PM

and put another (known good) sparkplug in it that way you know if it sparks....

if it sparks and also injects...then it could be question of timing....

how does the engine exhaust gasses smell??

fireing order right?? sensor angle right??

leads to the edis in good condition??

Should be easy tu cure...

Tks

tks - 5/6/05 at 12:03 PM

and put another (known good) sparkplug in it that way you know if it sparks....

if it sparks and also injects...then it could be question of timing....

how does the engine exhaust gasses smell??

fireing order right?? sensor angle right??

leads to the edis in good condition??

Should be easy tu cure...

Tks

stevebubs - 5/6/05 at 04:20 PM

Got the car started on all 4 now - putting it down to dodgy Crank Sensor lead and butterflies on 1/2 letting too much air in.

Thanks for all your suggestions.

davidwag - 5/6/05 at 07:20 PM

Hi Steve'

I've hopfully e-mailed a map to you.

Have you got anywhere today?

David

stevebubs - 5/6/05 at 09:21 PM

Yay! Thanks!! All sorted now...just need to reconnect the clutch pedal and I should be able to get an MOT!!!

Wahay!!!