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Thread: Washed car, flat battery then error codes.

  1. #1
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    Vehicle : Vectra

    Trim : LX

    Engine : 1.8 Petrol

    Year : 2004

    Default Washed car, flat battery then error codes.

    Hello everyone, this is the first real issue I have had with my Vectra that I cannot get over.
    It is a 2004 1.8 petrol estate with a Z18XE engine. I have looked through the forums and am okay changing stuff to a point.
    Below is the problem that I have had.

    Washed my car then the next day the battery was flat. I charged the battery and the car seemed fine.
    Managed to do small journeys during these times with no problem.

    My wife took it to the tip last week and the EML light come on. I looked at the codes and it was P0100 & P0170.

    Last year it was sluggish in 2nd and 3rd gear so a mechanic friend advised a new coil pack. I got this and the problem was sorted.

    Before lockdown pulling away in 1st gear was quite bad so I was thinking the coil route again. The coil I got last year was a scrappy one so it could have gone. I had no error codes in this time.

    I ordered a brand new coil which came during lockdown and I promptly dropped it on the path unpacking it. Not sure if it is damaged and contributing to the issue or coincidence.

    I got it serviced last week as it was booked anyway which cleared the codes but a day later P0100 came back.
    I managed to get hold of a MAF (borrowed) and have tried it for a few days and the P0100 code has gone away. I am going to order a Siemens MAF as the original one gives the P0100 error straight away.

    While waiting in a queue the other day once the car got to 90 degrees temperature the revs dropped then went to about 1500 revs. Then P0170 error came back.

    Today I have found the following little hose in front of the car and am wondering if it is another cause of my problem.

    Does anybody recognise it from the pictures.
    Attached Images Attached Images

  2. #2
    Regular Member CLUB04's Avatar
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    Vehicle : Vectra

    Trim : SRI

    Engine : 2.2 Direct

    Year : 2006

    Mileage : 84,000

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    Looks like a vacuum hose to me

    Sent from my H8416 using Tapatalk

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  4. #3
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    Vehicle : Vectra

    Trim : LX

    Engine : 1.8 Petrol

    Year : 2004

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    I will have a look and see where it goes. Am I right in thinking around the throttle body.



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    Regular Member northpole's Avatar
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    Vehicle : Vectra C

    Trim : SXI limited edition

    Engine : 2.0 16v DTI

    Year : 2003

    Mileage : 140000

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    Yes, somewhere around there abouts, check your air box also sometimes they have a vacuum pipe connected also...

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    Vehicle : Vectra

    Trim : LX

    Engine : 1.8 Petrol

    Year : 2004

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    Thanks.

    I will update when I have a look tomorrow.

  7. #6
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    Vehicle : Vectra

    Trim : LX

    Engine : 1.8 Petrol

    Year : 2004

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    I've had a look around and cannot see where it could be from.

  8. #7
    Regular Member northpole's Avatar
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    Vehicle : Vectra C

    Trim : SXI limited edition

    Engine : 2.0 16v DTI

    Year : 2003

    Mileage : 140000

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    Ask the garage that helped you if they've replaced a vacuum hose or if they used a vacuum tester... it might not be from your engine.
    Last edited by northpole; 11th May 2020 at 16:36.

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    Vehicle : Vectra

    Trim : LX

    Engine : 1.8 Petrol

    Year : 2004

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    I think the hose may be irrelevant. I have had some progress though. (But I am holding my breath until I drive it around for the next couple of days.)

    The Siemens MAF was delayed so I got an Ebay one which came quicker. I tried it and it still gave P0173 error. So I got some petrol injector cleaner which I have put into the car and have driven it around.

    Then my Siemens MAF (It came as a Continental) arrived so I thought I would put it on. Straight away I got P0100 error & P0173 error. When I put the Ebay one back on I do not get P0100 straight away but I did notice that the jubilee clip wasn't gripping properly. The hose could move so I got some long nose pliers to get hold of the clip to put it up as I tightened it.

    No errors and no jumping around when I accelerate. I am still waiting for this not to be the answer but I think it is a step in the right direction. I have ordered new clips and will put them on when I get them.

    I will then try each MAF when I know that it is properly tight and see how I go.

    There are differences with the MAFS

    Original MAF 1.jpg

    Jubilee Clip.jpg

    Original MAF 2.jpg

    VDO MAF 1 .jpg

    VDO MAF 2.jpg

    Fingers crossed.

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  12. #9
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    Vehicle : Vectra

    Trim : LX

    Engine : 1.8 Petrol

    Year : 2004

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    Update.

    Got news jubilee clips (they are slightly wider than the ones that originally failed but I can get them tight).

    Replaced the clip after the MAF sensor. Drove for about 12 miles not going over 30mph and the car ran loads better. No codes, just a couple of flat spots which I can live with.

    Got home and looked at the clip and it looked fine. Checked the clip from the air hose to the throttle body and this was loose. Couldn't tighten this on also. I replaced it with a slightly wide one and car runs well but getting P0170 when it gets to 80 degrees after a 60mph blast down a local A road.

    Going to try to get a couple of clips which are the right width just to make sure.

    Feel as though I am getting somewhere at least.

    Played check the MAF

    eBay one - drove fine yesterday and gave P0170 pending on A road. Got home and clip from air hose to throttle body was loose.

    Continental one - Gave P0100 and P0170 error and engine light came on.

    Original Siemens - Idle up and down when car started, gave P0170 error and engine light after 5 minutes.

    Going to refit the eBay one and stick with that.

    May take it to a local garage to check the exhaust to see if it is leaking. When the car was idling I could feel warm air on my right leg as it was out the car on the floor.



    Sent from my TA-1020 using Tapatalk

  13. #10
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    Vehicle : Vectra

    Trim : LX

    Engine : 1.8 Petrol

    Year : 2004

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    Took it a local garage. He checked for leaks, cleaned the MAP sensor and throttle body and ran it at temperature then took it out. Said it is sorted now.

    Going out in a bit and I'll see if this has sorted the problem.

    Sent from my TA-1020 using Tapatalk

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