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my 1985 nissan 200sx starts breaking up or misfiring after ...

Sent to Car Experts August 10 2006 at 3:06 PM
   

my 1985 nissan 200sx starts breaking up or misfiring after 4000 rpm under load only. I changed the plugs, cap and rotor, I didnt change the wires yet if its not the wires do you have any other suggestions or help of any kind . thank you [ 2.0 liter non turbo 5 spd man.]

Customer (name blocked for privacy)
Status:  Closed   Value: $8
Answer
August 10 2006 at 3:22 PM (15 minutes and 21 seconds later)
         
REPLIEDCheck Mark

Hello,

I would definatly check the wires. I would also check the coil. If either one of these are weak you are going to see it under a load. It may be as simple as a spark plug wire breaking down under load. Look for any white spots on the wires. If you see these it will show that the spark is jumping out of the wire to ground.

Hope this helps...PLEASE ACCEPT

Thanks, Dean

Dean -- Auto Service Technician -- 100% Positive Feedback on 216 Car Accepts
ASE Master Auto Technician
Reply
September 3 2006 at 9:34 AM (23 days and 18 hours later)
         
Reply to Dean's Post: I changed the wires regapped the plugs. The coils look original. but before I changed everything it wasn't breaking up . How do I check to see if the coil is weak. please heeelp
Customer (name blocked for privacy)
Answer
September 3 2006 at 2:36 PM (5 hours and 1 minute and 19 seconds later)
         
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Dean -- Auto Service Technician -- 100% Positive Feedback on 216 Car Accepts
ASE Master Auto Technician
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