Compression Test - What's the easiest way to dissable the injection and ignition syst

[godzillar32]

Guys, I want to do a dry compression trust on the wife's 172 cup (ph2). Whats the simplest way to dissable the fuel injection and ignition systems ?? Take ecu plug off coil pack to isolate the ignition ?? What about the injection??

 

[Cup_Phil]

Re: Compression Test - What's the easiest way to dissable the injection and ignition

Pull the fuel pump fuse out

Small green 30amp one in this pic - top left as you look at the fuse box in the engine bay

 

[godzillar32]

Re: Compression Test - What's the easiest way to dissable the injection and ignition

Cheers bud so the bottom left fuse in your pic? Will it trigger an engine management light? Also will pulling the ecu connector off the coil pack dissable the plug leads to ?

 

[Mr R.]

Re: Compression Test - What's the easiest way to dissable the injection and ignition

Cheers bud so the bottom left fuse in your pic? Will it trigger an engine management light? Also will pulling the ecu connector off the coil pack dissable the plug leads to ?

Yes it will disable the plug leads, i think Phil is talking about the small light green fuse.

 

[godzillar32]

Re: Compression Test - What's the easiest way to dissable the injection and ignition

I'm colour blind though....seriously!!

 

[Laine_16v]

Re: Compression Test - What's the easiest way to dissable the injection and ignition

Sod touching anything in the fuse box. The ingition and coils wont be an issue as youve removed it all to access the spark plug holes anyway. Just unplug the 4 injector plugs they are easy to get to.

 

[Cup_Phil]

Re: Compression Test - What's the easiest way to dissable the injection and ignition

Or that - but it's hardly hard to pull a fuse

Yes mate it's the bottom left one on the pic I attached.

 

[godzillar32]

Re: Compression Test - What's the easiest way to dissable the injection and ignition

My Dorris can pull the fuse... lol. I'm looking for 190psi or more with not more than a 5% variance between all 4 cylinders right guys ?

 

[Dan@SJM]

Re: Compression Test - What's the easiest way to dissable the injection and ignition

Tbh I wouldn't be too concerned if it was 180 upwards.

 

[godzillar32]

Re: Compression Test - What's the easiest way to dissable the injection and ignition

Cheers Dan..im going to do this tomorrow.......weather permitting!!