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Author Topic: 2.2 with P0170 code  (Read 5545 times)

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Welung666

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Re: 2.2 with P0170 code
« Reply #30 on: 07 April 2009, 22:18:06 »
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Right.....have we checked the 02 sensors are connected up correctly....i.e the right ones to the right connectors?

Only go 1 way... pre-cat (as in the 1 between the cats) plugs up behind the head and the post-cat plugs in at the gearbox. The welding was the flexi  joint. I had the pipe pressure tested and the flexi isn't leaking anymore.
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ify2.2sport

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Re: 2.2 with P0170 code
« Reply #31 on: 07 April 2009, 22:22:11 »
hi what diagnistic tool are you using? i have seen some on ebay at around £40 but not too sure as to their use.
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Welung666

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Re: 2.2 with P0170 code
« Reply #32 on: 07 April 2009, 22:27:52 »
I'm going to pick up both exhaust manifold gaskets tomorrow (to head and to downpipe) and change them both. I'll try swopping the 2 lambda's over to see if it changes the flutter or not.
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Marks DTM Calib

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Re: 2.2 with P0170 code
« Reply #33 on: 08 April 2009, 10:19:50 »
The thing is that the system shows a closed loop setup when cold and then open loop when hot.

This points to either the O2 sensors not being connected correctly or an air leak buggering the readings up.
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VXL V6

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Re: 2.2 with P0170 code
« Reply #34 on: 08 April 2009, 12:58:17 »
Another thing.... what about the CTS temp at cold? Doesn't look right to me.

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Welung666

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Re: 2.2 with P0170 code
« Reply #35 on: 08 April 2009, 13:13:18 »
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The thing is that the system shows a closed loop setup when cold and then open loop when hot.

This points to either the O2 sensors not being connected correctly or an air leak buggering the readings up.

Hence me wanting to reseal it all at the head end :y
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Welung666

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Re: 2.2 with P0170 code
« Reply #36 on: 08 April 2009, 20:05:03 »
Right!!! New head to manifold gasket purchased. Removed the manifold and the multi-layers of the old gasket instantly waved up. After an hour scraping the exhaust paste off the manifold and head I fitted the new gasket (without the paste I might add!). Then I cleaned up top of the downpipe, added a light smear of firegum, stuck the gasket to it, another smear of fire gum and nipped it up tight. Gently torqued up the manifold/head bolts and the top centre wouldn't torque up  >:( Took it out along with full threads of head  >:( Cleaned the stud up, added a big dollop of threadlock and wound it in, went for a cuppa and it torqued straight up ;D Fired her up and it dies! 3 or 4 attempts later fires up perfectly. No noticable sound difference but no more miss!!! So fingers crossed :y
« Last Edit: 08 April 2009, 20:05:43 by Welung666 »
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Welung666

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Re: 2.2 with P0170 code
« Reply #37 on: 09 April 2009, 06:38:43 »
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hi what diagnistic tool are you using? i have seen some on ebay at around £40 but not too sure as to their use.

It's the opelscanner and it's own software :y
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Welung666

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Re: 2.2 with P0170 code
« Reply #38 on: 13 April 2009, 20:22:09 »
Well it's going back in for it's re-test first thing in the morning as that's the 10th working day since failing. I just hope the manifold re-seal has done enough.
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iggy21uk

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Re: 2.2 with P0170 code
« Reply #39 on: 13 April 2009, 20:45:15 »
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Quote
hi what diagnistic tool are you using? i have seen some on ebay at around £40 but not too sure as to their use.

It's the opelscanner and it's own software :y

Genuine Opelscanner not a copy from ebay with very early version of the software - many things have been added and corrected.  
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[size=10]Opelscanner Can owner / Cam lock kit owner [/size] [/i][/b]

VXL V6

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Re: 2.2 with P0170 code
« Reply #40 on: 13 April 2009, 23:18:43 »
Yep, it is the Opelscanner with USB interface.

Don't go near the eBay Opelscanners as they are copies with very old software that you won't be able to update.

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Welung666

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Re: 2.2 with P0170 code
« Reply #41 on: 14 April 2009, 09:12:55 »
Rightio.... pulled up all fine, gets on the ramp and the rather' EML comes on again  >:( >:( Lambda reading exactly the same! So any suggestions (Mark DTM?) before I set light to the rather' thing???  >:( >:( >:(
« Last Edit: 14 April 2009, 09:13:14 by Welung666 »
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Marks DTM Calib

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Re: 2.2 with P0170 code
« Reply #42 on: 14 April 2009, 12:15:24 »
Can you swap the pre-and post cat Lambda sensors over (i.e.remove from the exhaust and re-fit)
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Welung666

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Re: 2.2 with P0170 code
« Reply #43 on: 14 April 2009, 12:17:27 »
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Can you swap the pre-and post cat Lambda sensors over (i.e.remove from the exhaust and re-fit)

Quite easily, would I need to get the codes re-read then to show the other sensor at fault?
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Marks DTM Calib

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Re: 2.2 with P0170 code
« Reply #44 on: 14 April 2009, 12:20:57 »
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Can you swap the pre-and post cat Lambda sensors over (i.e.remove from the exhaust and re-fit)

Quite easily, would I need to get the codes re-read then to show the other sensor at fault?


Ideally yes.

What we are fighting with is that the O2 sensor is not going closed loop although engine coolant temperature looks fine.

Remind me, does it tick over smoothly?
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