Nissan 200sx problem
Discussion
Can anyone help! I have a '91 Nissan 200sx which is misfiring and idling eratically. The engine runs and pulls smoothly upto about 4,000 RPM where it begins to misfire. I have just replaced the plugs and am investigating the coil packs. There are no HT leads, but individual coil packs for each plug. I have tried checking whether they are faulty by pulling each one out individually with the engine running, aparantly the faulty one wont make the car stall, the rest will (although don't quite understand how this could work), anyway, the engine doesnt stall on any of them. Does anyone have any ideas how best to test these coil packs? Also, after giving the car a good thrashing it idles irratically and sometimes stalls, gratefull for any ideas.
Your best bet would be www.sxoc.co.uk My father in Law has got two of these (he posts regularly on sxoc) I know one of them had a similar problem to what this sounds like, I believe he replaced the Fuel Filter and checked the lead to the AFM thing which turned out to be loose. if it was the coil packs it would be lumpy as hell all the time not just when coming on boost.
>> Edited by andoverben on Thursday 5th August 13:32
>> Edited by andoverben on Thursday 5th August 13:32
Do you have a multimeter & 200sx manual?I've only done this on a skyline,values will be slightly different but the principal is the same.
If so: This is a quote from the ecr33-rb25det manual.
(1)Disconnect ingnition coil from harness.
(2)Measure resistance (ohms)between following terminals:Primary coil resistance(1~2)(ohms): Approx. 0.6- 0.9ohms. End quote.
This means find which pinouts are + and -(minus) measure the resistance in ohms ,on your multimeter between them & they all should be the same, between 0.6 & 0.9 ohms.
I know these values prolly arnt what you want ,but if you get a consistant reading for each coil pack they should be working ok.Hope this is of some help
>> Edited by tuttle on Friday 6th August 18:39
If so: This is a quote from the ecr33-rb25det manual.
(1)Disconnect ingnition coil from harness.
(2)Measure resistance (ohms)between following terminals:Primary coil resistance(1~2)(ohms): Approx. 0.6- 0.9ohms. End quote.
This means find which pinouts are + and -(minus) measure the resistance in ohms ,on your multimeter between them & they all should be the same, between 0.6 & 0.9 ohms.
I know these values prolly arnt what you want ,but if you get a consistant reading for each coil pack they should be working ok.Hope this is of some help
>> Edited by tuttle on Friday 6th August 18:39
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