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Over fuelling

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Zooktara94

Joined: Mon Aug 31, 2015 9:51 am
Posts: 8
Vehicle: Vitara 94

Posted: Thu Nov 12, 2015 8:55 pm

This may be a female question but no one else helps.. If my Tara is over fuelling what are options it could be? Pump? Injectors?

henno

I live here!

Joined: Tue Jul 23, 2013 5:56 pm
Posts: 2439
Location: Brisbane
Vehicle: Which one?

Posted: Fri Nov 13, 2015 9:45 am

Is it an EFI or Carby vitara?

Zooktara94

Joined: Mon Aug 31, 2015 9:51 am
Posts: 8
Vehicle: Vitara 94

Posted: Fri Nov 13, 2015 4:03 pm

Fuel injected

TEKNO

Joined: Wed Jan 21, 2015 6:28 am
Posts: 155
Location: Southern Adelaide
Vehicle: 2012 SUZUKI JIMNY M18A AUTO

Posted: Fri Nov 13, 2015 7:49 pm

This may be totally irrelevant but my m18a converted jimny was over fuelling due to way to much air flowing past the airflow meter when the factory ECU was still a 1.3 and it wasn't coping so I had a piggyback ECU installed to overcome this and it worked a treat......also how clean is your air flow meter and your air filter as this can be an issue??
Just a thought

Gwagensteve

Joined: Thu Feb 26, 2009 10:30 pm
Posts: 13007
Location: Melbourne

Posted: Fri Nov 13, 2015 10:17 pm

Fuel pressure regulators are starting to give trouble at this age.

Zooktara94

Joined: Mon Aug 31, 2015 9:51 am
Posts: 8
Vehicle: Vitara 94

Posted: Sun Nov 15, 2015 9:47 am

Will check out the fuel pressure regulator.. Had ecu replaced and it allows it to run but at high revs as soon as revs lower she drowns in fuel.. Will check back when have done the regulator

atari4x4

az supporter

Joined: Mon Dec 11, 2006 10:30 pm
Posts: 34842
Location: East Radelayed
Vehicle: SV420+SV620 Vitara's

Posted: Mon Nov 16, 2015 1:40 pm

Has the o2 Sensor been replaced?

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Zooktara94

Joined: Mon Aug 31, 2015 9:51 am
Posts: 8
Vehicle: Vitara 94

Posted: Tue Nov 17, 2015 10:48 am

I don't think so.. Does that have anything to do with air flow sensor?

Gwagensteve

Joined: Thu Feb 26, 2009 10:30 pm
Posts: 13007
Location: Melbourne

Posted: Tue Nov 17, 2015 10:52 am

No. O2 sensor will cause fuelling issues on cruise, but not all the time.

If it's doughy/stumbly rich off idle etc I'll still go with fuel pressure regulator.

Steve.

Zooktara94

Joined: Mon Aug 31, 2015 9:51 am
Posts: 8
Vehicle: Vitara 94

Posted: Tue Nov 17, 2015 12:16 pm

Can't even get it to drive. Only get it to rev every now and then so must not be o2 sensor.. Have ordered a fuel pressure regulator so hopefull when that is changed it will run fingers crossed lol

Rhinoman

Joined: Mon May 16, 2011 7:03 pm
Posts: 686
Location: Brinkworth, England

Posted: Wed Nov 18, 2015 6:01 am

Does the Check Engine Light come on at key on and then go out when the engine starts, if it is on all the time then there will be fault codes present. Randomly changing parts could get very expensive very quickly, you need to perform some diagnostic checks. The O2 sensor will cause fuelling issues all the time however it shouldn't cause that big a problem.
Is this an 8V engine or a 16V?

Zooktara94

Joined: Mon Aug 31, 2015 9:51 am
Posts: 8
Vehicle: Vitara 94

Posted: Wed Nov 18, 2015 11:39 am

No engine light no fault codes had all that checked.

Zooktara94

Joined: Mon Aug 31, 2015 9:51 am
Posts: 8
Vehicle: Vitara 94

Posted: Wed Nov 18, 2015 11:40 am

not randomly replacing parts. Process of elimination with the fuelling system

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