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Author Topic: Start-up lumpy idle on 2.2  (Read 4031 times)

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Welung666

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Re: Start-up lumpy idle on 2.2
« Reply #30 on: 30 May 2010, 08:39:03 »
There shouldn't be any oil in the inlet pipes. The breathers will need a good clean and dry out the inlet pipes.
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vic

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Re: Start-up lumpy idle on 2.2
« Reply #31 on: 30 May 2010, 11:26:37 »
If I have understood your problem correctly your lumpy idle  problem  is on cold start up only and from symptoms, again if I've understood correctly dissapears when the system goes closed loop and the lambdas take over, which only takes a minute or two. I still favour the the MAF as the culprit, air trunking leak or both. Did you try from cold start with the MAF disconnected? ie; after overnight stand. This test is a no cost option so humour me. I also agree with a previous poster check your skuttle for dampness and I would also check the plug wells for oil or water. After market MAFs are a waste of money, I have the T shirt to prove it, mine lasted a week. It is possible to source an OE MAF for about £65, but you need to make sure they are what they're advertised to be. Don't bin the car for a niggling problem. I chased similar issues around my mig' for weeks and it was help and advice from the guys on this forum that now sees my car running as sweet as a nut' and a joy to drive.
Good luck guys
VC :y
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Erzy

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Re: Start-up lumpy idle on 2.2
« Reply #32 on: 30 May 2010, 22:35:52 »
Cheers Welung666, like i said small amount of oil in the large baffled pipe after maf, this is the only one i checked. Which are the breathers, the inlet pipes and outlet pipes ? It's all new to me ! Should they all be bone dry- sorry for being a pain but i thought that paying to have it done would leave the mig running great :-/
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Easy now, theres only one Lanny, the original - the mine!

Kumamoto

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Re: Start-up lumpy idle on 2.2
« Reply #33 on: 31 May 2010, 07:33:33 »
Fitted new iridium plugs (Denso mmake ) and the car improved slight. I suuppose because the iridium are perfomance plugs. Same sympton still persists.
I have now decided to buy a brand new MAF. Which of the two is better (Siemens or Bosch). I have wasted too much time and effort on tryinng to fix the car and maybe my problem is the cheap MAF i bought from ebay >:(.  I will advice after fitting new MAF.
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vic

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Re: Start-up lumpy idle on 2.2
« Reply #34 on: 31 May 2010, 10:46:56 »
Hi Kumo'
I bought my 'genuine' OE MAF from these guys (see link).
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=190307134070
 I made a point of checking with them first that it was a genuine OE MAF and they assurred me it was. My first go at buying a cheap MAF off Ebay got me a replacement that had what appeared to be resistors in place of the original genuine platinum wires. That lasted a week and cost me £35. (no great surprise if you subscribe to the view "you gets what you pay for"). My local stealer wanted £112 for a GM supplied Siemens replacement.
I bought my second MAF £65, a Siemens, but this had puka platinum wires inside, and this has been working fine for several months since I fitted it. I remember from your previous posts that disconnecting the MAF made your car run better on cold start up, which suggests to me you were on the right track.. All the symptoms so far on this thread including lumpy idle and hesitation when pressing the gas pedal are typicaly MAF related, but could be aggravated by water/oil in plug wells. The problem with modern engine management systems is everything is inter dependant, and often faults codes occur in one area which are caused by dodgy signals from elsewhere.
Always in my view worth Googling " Diagnosing MAF problems video" on the internet. You will be surprised to find just how much info' is out there.
I spent a lot of time leaning over my engine and not a few pennies in the process to get my Mig' sorted, but I did learn a lot.
HTH
VC  :)
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Kumamoto

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Re: Start-up lumpy idle on 2.2
« Reply #35 on: 01 June 2010, 11:37:35 »
Quote
Hi Kumo'
I bought my 'genuine' OE MAF from these guys (see link).
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=190307134070
 I made a point of checking with them first that it was a genuine OE MAF and they assurred me it was. My first go at buying a cheap MAF off Ebay got me a replacement that had what appeared to be resistors in place of the original genuine platinum wires. That lasted a week and cost me £35. (no great surprise if you subscribe to the view "you gets what you pay for"). My local stealer wanted £112 for a GM supplied Siemens replacement.
I bought my second MAF £65, a Siemens, but this had puka platinum wires inside, and this has been working fine for several months since I fitted it. I remember from your previous posts that disconnecting the MAF made your car run better on cold start up, which suggests to me you were on the right track.. All the symptoms so far on this thread including lumpy idle and hesitation when pressing the gas pedal are typicaly MAF related, but could be aggravated by water/oil in plug wells. The problem with modern engine management systems is everything is inter dependant, and often faults codes occur in one area which are caused by dodgy signals from elsewhere.
Always in my view worth Googling " Diagnosing MAF problems video" on the internet. You will be surprised to find just how much info' is out there.
I spent a lot of time leaning over my engine and not a few pennies in the process to get my Mig' sorted, but I did learn a lot.
HTH
VC  :)
Thanks vic, got the MAF and hopefully will sort out the problem
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ronnic

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Re: Start-up lumpy idle on 2.2
« Reply #36 on: 02 June 2010, 15:20:01 »
Sorry Erz, I've been watching the forum but still no miricle cure. I'm reluctant to spend even more money on this car until I can be certain of an imediate cure.

Car still lumpy when started from cold but once going it seems to be ok. Taking it to France on Friday so I hope to god it doesn't decided to go sick again while I'm there :(
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coastie123

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Re: Start-up lumpy idle on 2.2
« Reply #37 on: 03 June 2010, 14:52:03 »
Quote
Listen lads, & take everything I say with a pinch of salt as i'm a bit pissed as I write this! I have experienced everything you are now going through and can only speak as I found? The first 'Port of Call' is the Cam Sensor! Easy fix & not too expensive, especially if you can get one second hand from a 'breaker' on here! The next 'Port of call' is the dreaded Crank Sensor! Again. cheapest fix is a guy with one for sale on here, but an absolute PITA to replace! Both these sensors account for the majority of fault codes & uneven running on the 2.0 + 2.2 Omega! Good Luck in your endeavours to solve your problems!
& apolologies for any alcohol induiced smelling mistakes!  ;D :y

I have one for a 2.2 if interested pm me - part number 9148306 and genuine vx one
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Auto Addict

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Re: Start-up lumpy idle on 2.2
« Reply #38 on: 03 June 2010, 17:50:08 »
Quote
Quote
Listen lads, & take everything I say with a pinch of salt as i'm a bit pissed as I write this! I have experienced everything you are now going through and can only speak as I found? The first 'Port of Call' is the Cam Sensor! Easy fix & not too expensive, especially if you can get one second hand from a 'breaker' on here! The next 'Port of call' is the dreaded Crank Sensor! Again. cheapest fix is a guy with one for sale on here, but an absolute PITA to replace! Both these sensors account for the majority of fault codes & uneven running on the 2.0 + 2.2 Omega! Good Luck in your endeavours to solve your problems!
& apolologies for any alcohol induiced smelling mistakes!  ;D :y

I have one for a 2.2 if interested pm me - part number 9148306 and genuine vx one

Crank sensors rarely fail on 2.0/2.2's, if it is failing, then it would show up as a fault code.
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I like red cars
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