Misfire cylinder two

BORHAN0089

MEMBER
2003 OPEL CORSA
1.0L
3 CYL
2WD
MANUAL
44,000 MILES

Hello friends,
I need your help and advice.
I have opel corsa c 1.0 2003 Z10xep with 3 cylinder. At cold start works perfect after about 30 mins when engine warm enough, I get the engine warning light with two OBD codes P0300 P0302. Cylinder 2 misfire detected.
I replaced the spark plugs, ignition coil and swapped injectors places.
The misfire is always in Cylinder 2.
Also we checked the timing chain, is perfect.
I did compression test:
Cylinder 1: 145 psi
Cylinder 2: 130 psi
Cylinder 3: 150 psi

Can anyone please help me?
what should I do?

Best regards

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Welcome to 2CarPros.

First, this vehicle isn't offered in the US, so my technical information is somewhat limited. I do have a question. Have you checked the crankshaft position sensor? When these sensors are starting to go bad, often times heat will cause issues. Take a look through these links. The first describes the sensor, second are common symptoms, and the last shows in general how one is replaced.

https://www.2carpros.com/articles/how-a-crank-shaft-angle-sensor-works

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Let me know if the symptoms discussed seem to mirror what you are experiencing.

Take care,
Joe

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Monday, October 21st, 2019 AT 8:41 PM

BORHAN0089

MEMBER
2 POSTS

Thank you for your replay.
I have not checked it, but I changed the camshaft sensor but no thing changed.
I forgot to tell you, when the cylinder 2 stops, the car makes white smoke also.

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Monday, October 21st, 2019 AT 10:34 PM

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Welcome back:

First, you are very welcome. I just hope I can help.

Is the white smoke from the exhaust? If so, it sounds like you have a blown head gasket that is allowing coolant to enter cylinder 2. Take a look through this link. It explains how to check for a bad head gasket.

https://www.2carpros.com/articles/head-gasket-blown-test

Let me know.

Joe

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Tuesday, October 22nd, 2019 AT 7:48 PM