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        General >> Problems >> 2.3 running problem
        
(Message started by: solarpanel on Oct 15^th, 2005, 11:46pm)

Title: 2.3 running problem
Post by solarpanel on Oct 15^th, 2005, 11:46pm

engine will start but it runs uneven,it runs asif the plug leads are on wrong,pops and bangs through inlet manifold and doesnt rev properly.have fitted another cat as it had fell to bits,any ideas gents

Title: Re: 2.3 running problem
Post by scorpio_man on Oct 16^th, 2005, 8:06am

hi there

check the coil packs for damage and the wiring to them. also, don't run it too long as it will damage the cat with a over rich mixture.

check the spark plugs for a correct gap... 1.0mm motorcraft AGPR22 P1.

give us somemore detail. did this just start happening? before or after fitting the new cat?

Title: Re: 2.3 running problem
Post by solarpanel on Oct 16^th, 2005, 12:33pm

hi scorpio-man,bought car couple of days ago it had been to main dealers who told the owner that the cat was us the guys got more money than sense so he bought new car[rover 75 est]so just wanted rid,yes the cat was us so fitted new cat,the car starts up,revs 3500 dies to tick over will then cough and spit then stops,restart does same again.its also had new plastic inlet manifold.any help

Title: Re: 2.3 running problem
Post by scorpio_man on Oct 16^th, 2005, 1:38pm

hi there

take the new cat off for the time being. no point in wreaking it. could be all sorts of things. fuel filter, injectors, coil packs, plugs, crank shaft sensor, etc, etc.

did the fmd give a print out of any error codes? that would be my first port of call. get a scan and see if it throws some light on it.

also check for cracks on the exhaust manifold and any lose fitting on the egr pipework.

hth

Title: Re: 2.3 running problem
Post by solarpanel on Oct 16^th, 2005, 8:28pm

exhaust manifold is ok, been replaced, coilpacks look ok,havent checked the crank shaft sensor,is it under the inlet manifold.as for print out i dont know will book it in for test scan,as i dont think anyone is in the norwich area on this site that can help out with a scan,fmd cost £55 per hr+VAT,they recon 90mins to scan car

Title: Re: 2.3 running problem
Post by scorpio_man on Oct 16^th, 2005, 8:49pm

hi there

make a post in the OBD-2 section. leave it for a few days and see if a member can help you out. might save you a bit. ;)

Title: Re: 2.3 running problem
Post by solarpanel on Oct 19^th, 2005, 5:40pm

hi gents,update,had tuning man round today got running problem sorted even though the car had had anew inlet manifold fitted by local garage up in scotland because they did not fix the cause of the poor running[cat falling to bits blocking it]the pressure has caused the manifold to hole just under the idle air valve plus the air valve has been damaged[with screwdriver by the look of it the centre disc is bent as i have compered it with the ones on my other two scorpios]so temp repair to manifold and changing iacv it runVERY WELL thanks to all who replied to posts
solarpanel

Title: Re: 2.3 running problem
Post by solarpanel on Oct 23^rd, 2005, 3:55pm

started car friday ran at 2000rpm would not drop revs as i thought it was on choke,sadly notbecause the cat had blocked the exhaust the hot gasses flow back through the metal pipe from manifold and goes into the inlet manifold where the metal pipe which has a bent end on it and this allows the heat to melt the plastic section under the iacv thus causing it to rev high as the air gets in under the valve