Dropped a cylinder on my Ph1?

[I_scoff_cake]

I drove home yesterday with the engine warning light on, then was driving it about today (after putting fresh fuel in) and the warning light started flashing and it sounded funny...like boxer engine...so I presume a cylinder isn't firing. It's low on power too and will stall when moving off unless I engage the clutch very gently. Lucky I was about half a mile from home so drove it back.

Any idea what the first thing I should do is? Thanks.

 

[M.A.C]

HT leads, coil pack, spark plugs.

If it doesn't miss fire as badly with very slightly throttle then it's more then like one of them!

 

[M.A.C]

If you can gather what cylinder isn't firing. Try swapping over the HT leads to see if the fault goes to another cylinder.

 

[I_scoff_cake]

HT leads, coil pack, spark plugs.

If it doesn't miss fire as badly with very slightly throttle then it's more then like one of them!

Thanks mate. Do you know what coil pack I need for the phase 1?

 

[olliewebbuk]

http://www.eurocarparts.com/ecp/c/R...fadd6b4dcdd9539562165d1d69ddfe2ba4b1cb&000197

 

[I_scoff_cake]

Does anyone know the best way to back off the bolts holding down the coil pack? I can't get any socket to fit over them because of the tiny gap between the bolt head and coil pack body. Stupid design!

 

[Ianboom]

1/4 drive socket?

 

[I_scoff_cake]

http://www.eurocarparts.com/ecp/c/R...fadd6b4dcdd9539562165d1d69ddfe2ba4b1cb&000197

f**k dude that doesn't fit; the electrical connector is the wrong shape.

 

[olliewebbuk]

f**k dude that doesn't fit; the electrical connector is the wrong shape.

Ouch! Sorry man, only picked that one as it was the cheapest listed. You got a local ECP branch? They're normally really good.

 

[I_scoff_cake]

Ouch! Sorry man, only picked that one as it was the cheapest listed. You got a local ECP branch? They're normally really good.

I opened the packet. I need the one with the more 'square' connector. Will have to pimp this one out on eghey.

 

[M.A.C]

Ouch! Sorry man, only picked that one as it was the cheapest listed. You got a local ECP branch? They're normally really good.

I use ECP for certain parts, they are usually pretty good.

Have you tried swapping the HT leads over? I thought it was my coil pack until I swapped the HT leads over and there was a break in one of the leads.

 

[I_scoff_cake]

I use ECP for certain parts, they are usually pretty good.

Have you tried swapping the HT leads over? I thought it was my coil pack until I swapped the HT leads over and there was a break in one of the leads.

I'll have to take the intake manifold off to do that yeah? I'm getting an OBD reader tomorrow anyway so will see what fault is flagging.

 

[olliewebbuk]

Even if you've opened it they'll have it back. I've taken loads of things back before.

 

[bloke]

seen loads of them throw an injector.

 

[I_scoff_cake]

seen loads of them throw an injector.

How do you fix that? Or diagnose it?

 

[bloke]

either get it plugged in to see if it shows one up or you can just unplug them and measure the resistance, should be around 16ohms ?

 

[I_scoff_cake]

either get it plugged in to see if it shows one up or you can just unplug them and measure the resistance, should be around 16ohms ?

Thanks dude.

 

[bloke]

no worries

 

[Coops Mk1]

as above, injector

home mechanic test, run lumpy, remove plugs, note which is sootiest, switch injector from suspect location to new cylinder and clean plugs. refit
run lumpy again and check to see if the sooty plug follows the injector or not

if it does, faulty injector, if it doesn't, faulty ht lead (9x out of 10)

 

[I_scoff_cake]

Hmm it's throwing up a P0130 (O2 sensor) fault.

 

[I_scoff_cake]

If I unplug the lead 4 from the coil pack the engine note doesn't change. As I place lead 4 back on the coil pack I can see the electricity arcing so I am assuming the spark is ok (I checked the plugs), so this must be injector 4 right???

 

[M.A.C]

If I unplug the lead 4 from the coil pack the engine note doesn't change. As I place lead 4 back on the coil pack I can see the electricity arcing so I am assuming the spark is ok (I checked the plugs), so this must be injector 4 right???

there still may be a break halfway down the HT lead that you can't see.

 

[I_scoff_cake]

Now I'm confused because I changed the injector and it's still the same; if I take the lead off the coil pack the note is the same but if I take the plug out of the injector the engine slows.

 

[Ianboom]

02 sensor error may be becuase it's running rich on one cylinder?

If it was me i'd suspect ht lead or plug-spark outside of engine doesn't necessarily mean spark in the combustion chamber as pressures are a lot higher.

 

[I_scoff_cake]

Fixed, thanks dudes.

 

[Ianboom]

So come on then-what was it?

 

[I_scoff_cake]

So come on then-what was it?

It was the injector for number 4 but for a while I was confused 'cos I thought number 4 was number 1.

 

[M.A.C]

ohhh… its 1 to 4 from the right as your looking at the engine from the front isn't it?