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        General >> Problems >> Lack of power?
        
(Message started by: Bikerdon on Mar 2^nd, 2009, 8:03pm)

Title: Lack of power?
Post by Bikerdon on Mar 2^nd, 2009, 8:03pm

Hi again, my 2.0l ultima auto will no longer rev beyond 4000rpm, it runs perfectly well below that. Plugs and filters are new, fuel shut off loom is ok. MAF has been cleaned as well. Engine is smooth and quiet and idles nicely. Am I correct in thinking that this points towards a blocked cat, I have checked everything else I can think of, ie, pipes blown off due to back pressure etc, have checked EGR valve as well and all is in order. Bikerdon.

Title: Re: Lack of power?
Post by adamn on Mar 2^nd, 2009, 8:10pm

guessing - check autobox turbine speed sensor, there might be a software limiter in EEC for it, and if you get wrong reading (higher then the reality), EEC should restrict the engine revs. Also depend on the variant of yours autobox.
I'm also not sure if you should expect the reading from tss to be same as the actual engine revs are, even if your car would be ok.
Don't know if this actually produces any DTC.

also - check you ignition system (just having load of trouble with it now) - check pip signal together with HV signal.

blocked cat - never had this, but I suppose (again) that you won't have nice idling (or even if, then it won't run nicely up to 4k).

HTH

Title: Re: Lack of power?
Post by scorpio_man on Mar 3^rd, 2009, 1:19pm

hi there

if you want to meet up at hampden park sometime, i'll have a look at it for you. i'll plug in my obd-2 lead and see if anything shows up.

i'm off work at the moment, so can meet up almost any time.

hth

Title: Re: Lack of power?
Post by Bikerdon on Mar 3^rd, 2009, 8:12pm

Hi scorpio_man, that would be brilliant if you could do that for me, unfortunately due to work commitments the soonest I could meet up with you would be on Friday afternoon after 2pm, or anytime over the weekend would also be fine. I would be quite happy to meet wherever else might suite you as well if that helps. Seems like every time I solve one issue something else pops up to keep me busy, still love the car though and wouldnt part with it. Bikerdon.

Title: Re: Lack of power?
Post by scorpio_man on Mar 4^th, 2009, 8:08am

hi there

say 3pm on friday, would that be ok? i'll meet you in the carpark outside the main stand. you need to enter it by the south side entrance.

hth

Title: Re: Lack of power?
Post by Bikerdon on Mar 4^th, 2009, 8:23pm

Thats great scorpio_man, I will be there at 3 on Friday. Looking forward to meeting you. Thanks again. Bikerdon.

Title: Re: Lack of power?
Post by scorpio_man on Mar 8^th, 2009, 10:29am

hi there

how did you get on?

is it pulling any better with the different coil packs?

here are some new ones on ebay (http://cgi.ebay.co.uk/FORD-ESCORT-RS-SCORPIO-2-0-2-3-16V-IGNITION-COIL-NEW_W0QQitemZ250215126242QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item250215126242&_trksid=p3286.c0.m14&_trkparms=72%3A1683%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318).

hth

Title: Re: Lack of power?
Post by Bikerdon on Mar 8^th, 2009, 1:16pm

Hi scorpio_man, well its still struggling to pass 4k under load in anything other than first gear, but it does seem be a little bit more responsive at lower revs now. I have also noticed a slight occasional miss at tickover so going to whip the plugs out and recheck the gap on them as well. Biggest problem is getting the time and dry weather to do anything major on it. Thank you so much for your time and advice on Friday, its very much appreciated and certainly has given me a few good pointers to solving the issue. Well spotted on the coils on ebay, might just pay out for them. Will keep you posted on progress and get your parts back to you as soon as I can. Bikerdon.

Title: Re: Lack of power?
Post by scorpio_man on Mar 8^th, 2009, 2:05pm

hi there

yep, sounds like you have 2 issues.

coil pack(s) breaking down under load and the cat brick moving about and blocking the flow.

re the coil packs on ebay. that's who i got mine from.

let us know how you get on.