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Vauxhall Corsa X10EP 2007 - Codes P0134, P0300 & P0303 - Ongoing #

Posted by Paul Goswell on April 1, 2016, 11:50 am

Year of Manufacture *: 07
Engine Size and Code *: x10ep

engine light not on but codes stored p0134 o2 sensor circuit range/performance intermittent
p0300 random cylinder misfire not present
p0303 cylinder 3 misfire detected
car is serviced every 6 months new plugs and coil pack fitted but on a long run the car symbol with spanner comes on and goes off no engine management lights on,customer says the car drives fine ?

Re: VAUXHALL corsa

Posted by Chris Angus on April 1, 2016, 12:03 pm, in reply to "VAUXHALL corsa"

check fuel trims
scope o2 sensor see how it's switching
scope MAF output.

Most likely it's a faulty MAF

You will need to reset trims after maf replacement

Re: VAUXHALL corsa

Posted by paul goswell on April 1, 2016, 12:11 pm, in reply to "Re: VAUXHALL corsa"
Paul Goswell

thanks chris for coming back so quick

Re: VAUXHALL corsa

Posted by paul goswell on April 1, 2016, 12:20 pm, in reply to "Re: VAUXHALL corsa"
Paul Goswell

I presume the maf is in the throttle body unit

Re: VAUXHALL corsa

Posted by Chris Angus on April 1, 2016, 12:36 pm, in reply to "Re: VAUXHALL corsa"

In the intake trunking near air filter

Re: VAUXHALL corsa

Posted by paul goswell on April 1, 2016, 12:59 pm, in reply to "Re: VAUXHALL corsa"
Paul Goswell

sorry chris there is only a air temp sensor in the trunking this is a x1.0ep engine

Re: VAUXHALL corsa

Posted by Shane Gray on April 1, 2016, 2:13 pm, in reply to "Re: VAUXHALL corsa"
Shane Gray

Hi, compresion test ? Possible injector?
Shane

Re: VAUXHALL corsa

Posted by Chris Angus on April 1, 2016, 3:43 pm, in reply to "Re: VAUXHALL corsa"

Ah ok, check engine vacuum then, and a leak test.

Have you scoped the lambda sensor?

Re: VAUXHALL corsa

Posted by andrew young on April 1, 2016, 6:12 pm, in reply to "VAUXHALL corsa"
Andrew Young

Are all the new parts genuine or aftermarket universal fit products??

vauxhall corsa

Posted by Paul Goswell on April 3, 2016, 3:12 pm, in reply to "Re: VAUXHALL corsa"
Paul Goswell

new lambda sensors fitted about 4 months ago and genuine bosch I've been out for long drives and lights not come on and no codes stored,but the owner (elderly ) drives up the road to the garden centre and light light comes on and then goes off,and the codes are stored,i will get it back in next week and record some live data i have not got a scope.

Re: vauxhall corsa

Posted by Chris Angus on April 4, 2016, 1:15 pm, in reply to "vauxhall corsa"

You're probably going to struggle without a scope, you won't be able to check anything properly.

What is the lambda voltage, this is where you need to be concentrating first, and did you check the fuel trims and vacuum (map)??

Ongoing #

Posted by Paul Goswell on November 27, 2016, 9:47 pm, in reply to "Vauxhall Corsa X10EP 2007 - Codes P0134, P0300 & P0303 #"
Edited by board administrator November 28, 2016, 8:05 am

this is still on going

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