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Author 1.2 envoy problem
Edidude
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Registered: 27th Nov 15
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29th Nov 15 at 19:48   View User's Profile U2U Member Reply With Quote
ust got a 2000 corsa envoy 1.2 for £60 it's done 60000 miles and ticks over nicely but when I hit the throttle it starts to cut out
Checked air which is fine but not sure how to check fuel or anything else

Any help is much appreciated
Ian
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Registered: 28th Aug 99
Location: Liverpool
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30th Nov 15 at 02:52   View Garage View User's Profile U2U Member Reply With Quote
Could be fuel supply which would explain a lack of power under load but it shouldn't make it cut out. I would think you have a rich condition detected and its trimming the fuel down to lean it out which is what's killing it. Normally lambda report which will give you that.

Is the idle steady?
Edidude
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Registered: 27th Nov 15
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30th Nov 15 at 07:21   View User's Profile U2U Member Reply With Quote
Ye idles fine could it be the egr valve
Edidude
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Registered: 27th Nov 15
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30th Nov 15 at 17:58   View User's Profile U2U Member Reply With Quote
Could it be over fueling if the injectors are seized
Ian
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Registered: 28th Aug 99
Location: Liverpool
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30th Nov 15 at 19:27   View Garage View User's Profile U2U Member Reply With Quote
Over fuel wouldn't cause it to cut out, plus it wouldn't affect all chambers.

Normally be present as a misfire if it was that. Unless you suspect all of them at the same time.
Edidude
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30th Nov 15 at 21:32   View User's Profile U2U Member Reply With Quote
If I quickly tap the throttle it kicks into life but when I stop and put foot down it really struggles and nearly cuts out

The air intake is fine so must be fuel issue
Can injectors be cleaned

Thanks
pow
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Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
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9th Dec 15 at 11:09   View Garage View User's Profile U2U Member Reply With Quote
Unplug the AFM and see if it's any better.
Edidude
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Registered: 27th Nov 15
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10th Dec 15 at 20:58   View User's Profile U2U Member Reply With Quote
Tried that it's got great suction what's the best way to clean injectors

 
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