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misfire in rain
http://www.gt4dc.co.uk/forum/viewtopic.php?f=13&t=5080
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Author:  SimonGT4 [ Sun Jul 31, 2011 3:26 pm ]
Post subject:  misfire in rain

hey guys ive had a problem with the car for a while even on both motors ive had in the car, when it rains or i clean the car i get low power and alot of missing at around 15psi, this is an st205. I am thinking mabey the dizzy is getting wet?, and my buddy here also has the same problem.

Author:  Kris [ Sun Jul 31, 2011 6:07 pm ]
Post subject: 

The UK is pretty wet and this isn't a common problem here :)

Usual culprits of misfire are ignition related, change/check in this order (imho):

1. Plugs - fit NGK BKR7E for cars upto 400hp
2. Check ignition timing
3. Replace rotor arm
4. Replace dizzy cap
5. Check engine/battery earths
6. Replace ignition leads

If it's a usual problem the above will fix it at your lowest cost :)

Author:  SimonGT4 [ Mon Aug 01, 2011 6:27 am ]
Post subject: 

sounds good, thanks again :)

Author:  Nibbles [ Mon Aug 01, 2011 9:32 am ]
Post subject: 

For misfire when wet I would most suspect external ignition components I.e. leads cracked dizzy cap or rotor arm.

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