Polo 1.4 8v Missfire Advice - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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johnhara1

Member

Registered: 19th Oct 06
Location: Newcastle upon Tyne
User status: Offline

9th Aug 13 at 16:09

I've just bought a 2001 Polo 1.4 8v.

It has a misfire on idle which seems to get worse then it's hot. It revs fine and the misfire isn't bad at higher revs.

EML was on and original fault codes were Misfire on Cylinder 1, 2, 3 and 4.

So far i have replaced the Plugs, Leads and Coil Pack but the misfire is still there.

EML now repeats codes:

p0303 - cylinder 3 misfire
p0351 - Ignition Coil A Primary/Secondary Circuit malfunction
p0352 - Ignition Coil B Primary/Secondary Circuit malfunction

Are these bad for the ECUs failing or does it seem likely to have burnt a valve out?

Just wanted a few opinions before i start trying to fix it.

Cheers

modded_corsa

Member

Registered: 9th May 03
Location: Middlesbrough
User status: Offline

12th Aug 13 at 08:18

The 8valve I have worked on do burn valves out but I have had troubles with the crank sensors giving random misfires.... Located to the rear of the engine with an Allen key headed bolt which likes to round off.... Also check the wiring to the multiplug of the coil pack... Check the pins inside the plug for security and give a gentle tug at wires

johnhara1

Member

Registered: 19th Oct 06
Location: Newcastle upon Tyne
User status: Offline

13th Aug 13 at 09:45

Thanks

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