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        General >> Problems >> Scorpio 2.0 8v misfire, yes, again!
        
(Message started by: Conrad on May 16^th, 2010, 4:37pm)

Title: Scorpio 2.0 8v misfire, yes, again!
Post by Conrad on May 16^th, 2010, 4:37pm

right im back, sorry about bein gone so soon after joining, lots of stuff got in the way but finally have a chance to get back on. changed the coilpacks as suggested, but to my dismay it still misfires on acceleration and sometimes at idle, it's bad and the car lacks power.

Title: Re: Scorpio 2.0 8v misfire, yes, again!
Post by Mike H on May 18^th, 2010, 3:12pm

Wasn't there something elsewhere about wiring to the ignition amplifer?

Title: Re: Scorpio 2.0 8v misfire, yes, again!
Post by Conrad on May 21^st, 2010, 1:32pm

i'm not sure, i'm only very new here, havnt read through everything

Title: Re: Scorpio 2.0 8v misfire, yes, again!
Post by Mike H on May 21^st, 2010, 2:13pm

Yes sorry I appreciate that, was hoping to jog someone else's memory ;D

Title: Re: Scorpio 2.0 8v misfire, yes, again!
Post by Mike H on May 21^st, 2010, 3:02pm

OK this may help, indeed there is a thing called electronic DIS (distributor?) module, with a multi-plug on it. A few more things connected to it than you might expect

http://cid-eb36f845ea9b8fb6.skydrive.live.com/self.aspx/WIRING%20DIAGRAMS/ENGINE%20CONTROL%202.5TDI%20AUTO%20.pdf#resId/EB36F845EA9B8FB6!176

Can't find one for the 8V, this is closest

Title: Re: Scorpio 2.0 8v misfire, yes, again!
Post by Tompion on May 21^st, 2010, 8:45pm

Distributorless ignition system

The 8v diagram is here:
http://cid-eb36f845ea9b8fb6.skydrive.live.com/self.aspx/WIRING%20DIAGRAMS/ENGINE%20CONTROL%202-0L%208V-16V%20%5E5MANUAL%5E6%20PRE03-96.pdf

Title: Re: Scorpio 2.0 8v misfire, yes, again!
Post by Conrad on May 22^nd, 2010, 12:41am

thanks for those lads

Title: Re: Scorpio 2.0 8v misfire, yes, again!
Post by Mike H on May 22^nd, 2010, 12:29pm

Dunno how I missed that, it's obviously there!

Title: Re: Scorpio 2.0 8v misfire, yes, again!
Post by Conrad on May 28^th, 2010, 5:54pm

have been lookin at those things there, electrical stuff is not something i like so will have to get some assistance.

Title: Re: Scorpio 2.0 8v misfire, yes, again!
Post by Mike H on May 29^th, 2010, 12:31pm

Must be something basic and fundamental, I mean if it were that serious it wouldn't work at all I would've thought.

I notice that the 8V version has got a capacitor across the supply for the coil driver module, could be like in the old contact breaker method if the "condenser" was up the spout it wouldn't spark properly (?)

Title: Re: Scorpio 2.0 8v misfire, yes, again!
Post by Dave2302 on May 29^th, 2010, 1:36pm

Have you checked the wiring where it goes into the cyl head / valve cover at the back, I've seen these with no insulation and shorting out.....A very common problem and causes misfires etc

HTH Dave

Title: Re: Scorpio 2.0 8v misfire, yes, again!
Post by Mike H on May 29^th, 2010, 6:24pm

IIRC I'm assuming this is already checked out / fixed, plus spark plugs not worn to nothing (the other favourite), but no harm asking again ;D

Title: Re: Scorpio 2.0 8v misfire, yes, again!
Post by Mike H on May 29^th, 2010, 6:25pm

PS you can get high Voltage pulses on the primary side of the coils as well, not a lot of people know that, which is why the ol' breaker condenser is needed.