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Zetec S with 1.7 puma engine..

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bonce1990

Post subject: Zetec S with 1.7 puma engine..

Posted: Fri Jul 08, 2011 1:49 am

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Joined: Sun Jun 26, 2011 10:17 pm
Posts: 13

Basically.
I'm gettin a shit idle from it, and it's only gettin worse.
I've got the day off today, so I intend on checking the maf, iscv, fuel filter, spark plugs and coil pack.

Sometimes it sounds like it's about to stall, but doesn't.
But it's also lumpy while driving at any speed. It's spluttering and being lumpy..
If I put my foot down, then it'll take a couple of seconds before I get knocked back into my seat, lol.
It should be instant, and not lag? basically.

any input for those of you who have dealt with a puma engine. or a similar engine.
cheers.

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Chris

Post subject: Re: Zetec S with 1.7 puma engine..

Posted: Fri Jul 08, 2011 2:33 am

David Dickinson's Naughty Bit

Joined: Mon May 25, 2009 9:08 pm
Posts: 8826
Location: Bournemouth
Drives:

Coil pack, first thing to try. Had the same problem although might need to change lambda

Start with coil pack and clean stufd and go on, ive had this with my si and my zs. Luckily its almost gone on my zs.. until I put high lift cams in. Now it idles everywhere

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bonce1990

Post subject: Re: Zetec S with 1.7 puma engine..

Posted: Fri Jul 08, 2011 3:38 am

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Joined: Sun Jun 26, 2011 10:17 pm
Posts: 13

Mhm. Pretty sure it doesn't have a lambda cause it's got a straight through exhaust, no cat.

Should probably post less on your phone, too many spelling mistakes

I'm just about to go out in it, so I'll have a poke around..

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Chris

Post subject: Re: Zetec S with 1.7 puma engine..

Posted: Fri Jul 08, 2011 4:12 am

David Dickinson's Naughty Bit

Joined: Mon May 25, 2009 9:08 pm
Posts: 8826
Location: Bournemouth
Drives:

one mistake.. not bad considering i'm pissed as well :lol:

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bonce1990

Post subject: Re: Zetec S with 1.7 puma engine..

Posted: Fri Jul 08, 2011 5:47 am

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Joined: Sun Jun 26, 2011 10:17 pm
Posts: 13

Glad to see you kept the trim on the car.
I think silver looks better with it

I'm thinking, it's the ISCV sensor, cause, it goes like shit once I put my foot down, but doesn't like when it has barely any throttle or idle'in.
However, I'll check everything over later. It's gunna be a car fiddling day!

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EvilDes

Post subject: Re: Zetec S with 1.7 puma engine..

Posted: Fri Jul 08, 2011 7:46 am

Evil Admin

Joined: Tue Dec 21, 2004 8:31 pm
Posts: 13430
Location: Birmingham (near Sutton Coldfield)
Drives:

I've got a straight through exhaust without a cat but I still have a lambda. It's in the downpipe, so don't rule out having one.

But as said, I'd go with coil pack first. It should be one of those things that's replaced anyway if it never has been.

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- Danny Boy -

Post subject: Re: Zetec S with 1.7 puma engine..

Posted: Fri Jul 08, 2011 9:57 am

FSI Supporter

Joined: Fri May 23, 2008 12:40 am
Posts: 7094
Location: Portsmouth
Drives:

Also as well as them sensors, check air temp sensor too.

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Tonwah

Post subject: Re: Zetec S with 1.7 puma engine..

Posted: Fri Jul 08, 2011 12:01 pm

Regular Poster

Joined: Sat Apr 24, 2010 5:52 pm
Posts: 431
Location: Plymouth
Drives:

either one of the following, maf sensor, idle control valve, or coil pack, i'd put money on it

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bonce1990

Post subject: Re: Zetec S with 1.7 puma engine..

Posted: Fri Jul 08, 2011 9:35 pm

New Member

Joined: Sun Jun 26, 2011 10:17 pm
Posts: 13

Well, it has magnecor ht leads. and number 1 has broken off, instead of the metal casing stuff being inside the rubber tube, it's snapped off, and I assume, it's not working as well as it should if it was fitted correctly.

It starts fine, but then sounds like it starts idling like poo, like it starts running on 3 cylinders, but runs FINE when I put my foot down..
Really weird.

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bonce1990

Post subject: Re: Zetec S with 1.7 puma engine..

Posted: Fri Jul 08, 2011 9:52 pm

New Member

Joined: Sun Jun 26, 2011 10:17 pm
Posts: 13

I did take the icv off, but couldn't see much wrong with it..
should I just blast it down with ipa cleaner?

what am I looking for on a non working icv?

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bonce1990

Post subject: Re: Zetec S with 1.7 puma engine..

Posted: Sun Jul 10, 2011 12:12 am

New Member

Joined: Sun Jun 26, 2011 10:17 pm
Posts: 13

I'm putting it down to the broken HT lead.
It's sparking, but I don't think it's working well enough for idle.

I blasted the ICV clean, and it ran alright for a bit. But it's started idling lumpy.

any help? cheeeers

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