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Topic: 2.3 Mis-Firing on acceleration (Read 657 times) |
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ChrisF
Full Member
All the Granny's now the best 98 2.3 16v Ultima
  
Posts: 136
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2.3 Mis-Firing on acceleration
« on: Feb 2nd, 2008, 9:07pm » |
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I've had this problem for some time now. It started with a simple case of mis-firing when I accelerated, thinking this was plug leads I bought a set (wow not cheap) fitted them, all went ok for a month then it started doing the same again, thinking it was a duff plug lead at first I checked with someone who knew the scopio and he suggested maybe it could be the air flow meter. He suggested I pull the plug of it and try that. I did exactly that and except for a little mis-fire on starting off it was cured I could even go up hills, so I purchased a new air flow meter, fitted it and what do you know were back to all the mis-firing, disconnected it and back to a little bit on starting nothing else. Help.
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: 2.3 Mis-Firing on acceleration
« Reply #1 on: Feb 3rd, 2008, 2:34am » |
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Sounds as though it could be the coil packs on the way out 
Or maybe the wiring loom insulation (where it goes to the coils) has crumbled away
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Kjetil S
Senior Member
2001 BMW 520iat
Posts: 1419
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Re: 2.3 Mis-Firing on acceleration
« Reply #2 on: Feb 3rd, 2008, 4:47pm » |
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Have you checked the spark plugs? I had similar symptoms and they were cured after changing the plugs.
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ChrisF
Full Member
All the Granny's now the best 98 2.3 16v Ultima
Posts: 136
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Re: 2.3 Mis-Firing on acceleration
« Reply #3 on: Feb 3rd, 2008, 8:23pm » |
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Well the plugs are new' about a month, platinum ones. The coil packs also. It is 'almost' cured by disconecting the air flow meter. Logic would say that it would be cured by connecting a new one not disconnecting it.
Anybody know where the air fow meter is connected to.
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Simmo
Administrator
I'm an OAP !
Posts: 5508
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Re: 2.3 Mis-Firing on acceleration
« Reply #4 on: Feb 4th, 2008, 7:30am » |
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Read all about it HERE. It is connected to the electronic 'brain'.
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ChrisF
Full Member
All the Granny's now the best 98 2.3 16v Ultima
Posts: 136
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Re: 2.3 Mis-Firing on acceleration
« Reply #5 on: Feb 14th, 2008, 10:48pm » |
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Well latest is I've reconected the old Air Flow Meter also the electrical connection and what do you know it all works perfect through the whole acceration range right up to 110mph. Any ideas.
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