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 Vectra problem
Author Message
Gentle Ben
Site Subscriber

Joined: 07 Oct 2004
Posts: 2281

Posted: Sat Apr 22, 2006 4:40 pm

Right, just something that's been niggling me. Been driving my mates' 2.5 V6 Vectra SRi (Eco-Tec lump) and at low revs it pulls fine, but dip the throttle any significant amount and the response is stuttery acceleration, almost like something's blocked up.

If you feed the revs in gently it's relatively okay but give it a whole load of throttle in one go and it splutters!

Any ideas, could be anything I suppose, from partially blocked fuel filter/lines, problem with fuel pressure or even a lambda issue perhaps?

Just a general question really as it's not my car but it's been bugging me ever since I noticed it happening!
Chet T16
Retroholic

Joined: 12 Feb 2004
Posts: 5685

Posted: Sat Apr 22, 2006 4:44 pm

Could be anything reallt! Dodgy TPS, lambda as you say. Anything!
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Sat Apr 22, 2006 4:52 pm

cambelt throwing the cam sensor out.

Won't always get the MIL light on but causes this issue. The belts very long and is a poor set up as well.
Gentle Ben
Site Subscriber

Joined: 07 Oct 2004
Posts: 2281

Posted: Sun Apr 23, 2006 6:56 am

New belt is the cure then?
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Sun Apr 23, 2006 12:02 pm

depends if thats the issue doesn't it! get the belt cover off and have a waggle
hooverphonique
Level 6 User

Joined: 10 Nov 2005
Posts: 149

Posted: Sun Apr 23, 2006 2:32 pm

afaik, most cars run open loop when flooring the throttle, which should rule out the lambda..
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