Evening all

Have recently done my conversion but am having trouble with the coil pack. Everything is powering up and working as it should but I am getting no spark on the plugs. Check the coil pack plug with a multi-meter and there is no power going to the plug. We tested a few other plugs and they are all fine.

Car is a 2001 mk 5 fiesta, digital puma loom with DIVE ecu

Any ideas what could be the issue?

How many earths on the loom? I have two on the chassis behind the headlights, top right mount from negative on battery, on right hand side of engine block from negative on battery and the one on the ecu.

Thanks in advance

Reece

 

Have you tried scanning for fault codes? Sure it's not crank / cam sensor related?

 

Ah! Could be the crank sensor. I'm guessing it's round by the crank pulley?

 

Or is it the one that goes next to the starter motor for the flywheel?

 

It'll be the one that points to the back of the flywheel. Yes it may be by the starter for that engine.

 

Cheers mate

Changed it yesterday but still the same issue. Fuel pump is priming, everything is clicking in but no spark still. Have tried two sets of packs and leads and still nothing. I'm also only getting a read off 0.10 from the coil pack plug on the multi-meter? Dodgy plug maybe?

 

are there not two plugs that can get mixed upon this model-ie crank sensor and another? worth a look...

 

Update

Seems that the loom is the issue. No connectors for the lambda sensor and tried multi-meter on another fiesta. On the fiesta coil pack plug, middle receiver shows 16.86v and the receiver to the right shows 13.48 and the other receiver is a dead. On my puma loom only the middle receiver is showing 16.86v and the other two are dead.

 

On the 3 wire coil pack plug, middle should see 12v (or there abouts) and the outer 2 are pulsed earth by the ecu to make the coil pack fire.

Matt.

 

Hello mate

Yeah no pulse. I've picked up another loom from lightning motorsport. Reviewing the loom I got with the kit it looks like it got a few bits missing anyways

Reece