Emerald K6 Onto A Gti6 With Jenveys

[markw 1]

One for the technical guys out there,

 

I have a frashly built alloy blocked mi, with gti6 head omega pistons, big catcams, solid lifters

double valve springs etc.

 

It is fitted with 45mm jenveys and an emerald K6 ecu (running a std map),But it just wont fire up,

 

we have compression tested it at about 185psi each,

 

We advanced the timing byu 10 degrees at a time to start it until it turned backwards, then knocked another 5 degrees out of it and it

sounds so close to starting its untrue, until you look at the computer and it says its 65 degress BTDC,

 

The only thing we have changed it from the original indiviual coil packs to an all in one 4 way pack.

 

Any ideas, does it sound like cam timing, faulty map, or ecu or the coil packs

 

cheers mark

[Tom Fenton 1,526]

Sounds like you have the crank trigger setup wrong, typically most engines will start or at least fire a couple of times with 10 deg ign adv, you certainly shouldn't need 65deg. Double check all that first.

[welshpug 1,623]

checked you have spark+fuel? or an RPM signal to the ecu?

 

doubt it'd make much difference, but have you used the MI or gti6 bottom timing sprocket? that is half a tooth different IIRC

 

 

got the leads in the right order? its a pug engine so No1 is Flywheel end...!

[[L'e$kro] 2]

Check those 2:

-VR sensor on flywheel has to be 114deg before TDC in the software

-if it pops flames at the inlet rather than the exhaust, invert the ignition on the 2 pairs of cylinders (1+4 and 2+3)

Nico

[markw 1]

we used a TTV steel flywheel with a 71/4" clutch for a gti6, and the mi16 crank sensor,

 

i thought these were compatable?

[pugpete1108 62 1 Cars]

have you physically check when the spark is coming whith a strobe? mine was doing exactly this on my ms setup and turned out it was firing oposite cylinders.

[pug_ham 240 3 Cars]

Does the flywheel have the timing teeth around the edge as required for the CAS to pick up the crank angle & signal the ecu when to spark?

 

If it is plain next to the starter ring gear that's why you have no spark.

 

Graham.

[markw 1]

No it has got timing teeth around the edge,

[RossD 43]

Check that the ECU is setup to use a 60-2 flywheel configuration and not something different like a 30-1. Also, you may have fuel, but are you dumping enough in?! Cold engines need a hell of a lot more than a hot engine.

[petert 553]

Sorry to sound like captain obvious, but have you checked with a timing light that it's actually firing at 10 deg BTDC? Turn off the injectors, check and do what ever it takes in the software to make it fire in the right place. Then turn the fuel back on.