Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[colin28]

5 weeks ago my gearbox went and I had replaced, since I got the car back I have had 5 weeks of hell. keeps coming up random multiple misfire 1-3-5 bank, I have replaced the coil 4 times now and still the same fault codes, I have been at my mates garage today AGAIN where the fault code have been deleted again.. but now I have
p0130 Circuit Malfunction
p0170 fuel trim malfunction bank 1 x2
p0300 random multiple misfire
p0301 bank 1
p0303 bank 3
p0305 bank 5

Please help as my car is doing my head in now......

Even the garage is running out of ideas.

[colin28]

drive Omega 2002, 2.6 v6

NOT 2.5

[jonathanh]

not surprise the garage has run out of ideas:  likely they are the cause of the problem!

I'd suspect the wiring loom going to the coil packs.  i'm not familiar with the 2.6 but that's where i'd start

[Marks DTM Calib]

Jonathan, you may be closer to the truth then you imagine!


The fault codes you are getting do NOT sudgest a coil pack failure. Under a failure of the coil pack you normaly see 1 of the 3 coils fail, not all 3 at once, resulting in a miss fire against a single cylinder.......unless of course you are VERY unlucky!

So, its clear we are dealing with the numebr 1 bank thanks to the info of P0301, p0303, p0305.

We also have some lambda faults.

P0130 - 02 sensor circuit bank 1 sensor 1
P0170 - Fuel trim malfunction bank 1


Now, given that each front pipe has two lambdas, one doing mixture control and the other dealing with cat efficiency.....start by checking the daft sods have not connected the 2 O2 snsors up wrong on the bank 1 front pipe!

[jonathanh]

Jonathan, you may be closer to the truth then you imagine!


The fault codes you are getting do NOT sudgest a coil pack failure. Under a failure of the coil pack you normaly see 1 of the 3 coils fail, not all 3 at once, resulting in a miss fire against a single cylinder.......unless of course you are VERY unlucky!

So, its clear we are dealing with the numebr 1 bank thanks to the info of P0301, p0303, p0305.

We also have some lambda faults.

P0130 - 02 sensor circuit bank 1 sensor 1
P0170 - Fuel trim malfunction bank 1


Now, given that each front pipe has two lambdas, one doing mixture control and the other dealing with cat efficiency.....start by checking the daft sods have not connected the 2 O2 snsors up wrong on the bank 1 front pipe!

only 'cos i remeber someone else having a similar problem about a year or so ago.......

[colin28]

Jonathan, you may be closer to the truth then you imagine!


The fault codes you are getting do NOT sudgest a coil pack failure. Under a failure of the coil pack you normaly see 1 of the 3 coils fail, not all 3 at once, resulting in a miss fire against a single cylinder.......unless of course you are VERY unlucky!

So, its clear we are dealing with the numebr 1 bank thanks to the info of P0301, p0303, p0305.

We also have some lambda faults.

P0130 - 02 sensor circuit bank 1 sensor 1
P0170 - Fuel trim malfunction bank 1


Now, given that each front pipe has two lambdas, one doing mixture control and the other dealing with cat efficiency.....start by checking the daft sods have not connected the 2 O2 snsors up wrong on the bank 1 front pipe!

Where do I locate these? I am Car thick. Sorry

[Marks DTM Calib]

Photo of the front pipe (removed from the car) showing the 2 sensors



Here is a pic of where the sensors connect to on the drivers side of the geabox.




So, find the connectors and swap them over!

[colin28]

Thanks for the information. Unfortunately it made no difference! any other ideas?

[Marks DTM Calib]

What codes do you have now?

[colin28]

Havent taken back to garage to check but can only guess they are the same as before!

[Marks DTM Calib]

You can read them yourself....have a look in the guides areas

[Welung666]

http://www.omegaowners.com/forum/YaBB.pl?num=1189022687  

[colin28]

Got 0300
0301
0303
0305

Still says coil even though its been changed loads

[Marks DTM Calib]

Yes but. it no longer says fuel trim!

Ok.

So, how is it running, miss firing, under what conditions?

Is the ECU light on?

[Marks DTM Calib]

And no it does NOT say coil, i says miss fire.....