wiring for 2.0 8v conversion

[ashurst74]

hi , i,ve fitted the c20ne engine out of a mk2 gte, bit stumped on the wiring??, cann't find the permiment live to the ecu on the new loom , some of the diagrams show it branching out of the loom with a ring connector on the end to connect streight to the battery terminal....anyone help ???

[mowgli]

that will be the battery +ve feed for the ecu loom..

isn't the engine in an 8v astra gte the c20seh?

i'll have a look in my haynes collection later.. it should be pretty much the same as the e16se.... does your engine have a dizzy or a dispak setup?

[swedge]

c20ne will have a lambda hence the c in the name

20seh wont have a plug for the lambda

[ashurst74]

thanks, the engine has been in 12 months now, seem to have come to a bit of a stalemate at the moment , if i can get it running i will spend some money on the car and get it back on the road.

[thedjse]

Some of the ECU lives are high up the loom some are near the ecu its in hard black plastic usually

[swedge]

Find te permanent live coming from the plug and joint a wire to it from the battery with a fuse in it or find a permanent live to use

[mowgli]

according to my trusty haynes, there is

1x 0.75mm2 red from the battery +ve to the ecu *
1x 4mm2 red to the fuel relay *
1x 1.5mm2 red from the fuel relay via a 20A fuse to the fuel pump *
1x 1mm2 black from the ign +ve to the coil feed *
1x 0.75mm2 black from the ign+ve to the distance sensor
1x 0.75mm2 black from the ign +ve to the fuel relay *
1x 0.5mm2 green from the coil to the rev counter *
1x 0.75mm2 brown/white to the EML (warning light) *
1x 0.75mm2 brown/yellow which is for the trip computer option

the ones i marked * i know are absolutely necessary

the trip compooter one is obviously not but i don't know about the speed sensor one

[StaggySaloon]

I have a c20ne in my nova and the loom i have is a 3 pin loom, it has a perm live to battery which, as you rightly say branches out of the loom near the octane chip i believe. It was ignition live i had problems with, went from the fuse for blowers and woundered why the fuel pump didnt work when cranking!