1998 Porsche Boxster "start missfiring spark" Questions

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...missfire /backfire when rpm is incr 1998 boxter runs perfect at idle ,,when rpm is increased engine starts too missfire and wont reach full power ,,,have changed the spark plugs and the air filer ...

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Question about Porsche Boxster

2 Answers

...start to lose power. Any ideas? If your air filter is not fresh, the difference in the weather conditions actually causes the air filter to restrict the flow of air into the engine just enough that ...

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missfire on 1 and 6 cyclinder running fine this morining then engine starts skipping looked at OBDII tool had missfire codes change cylinder 1 and 6 coils and all the spark plugs when the last time ...

...wondering if you can help with my holden 186 red motor as its developed a missfire under load . it starts and idles fine even in neutral it revs fine but when driving under load especially uphill it ...

Question about Porsche Boxster

1 Answer

...where to start I hope you used AC Delco plugs. Make sure the spark plug gaps are correct. Also, make sure you torque the spark plugs to manufacturer's specification. This would be a good start. ...

...start valve problem. and where is it. You might want to pressure test the cooling system and remove the #3 spark plug.  After the pressure tester sits on there for a few hours look into the ...

...start missfiring again 4 cilinder check new spark plugs for proper gap. It may have gotten hit when installing it.check coils second for resistance/firing. sometimes one bank will work fine and the ...

...spark plugs. Possible cause of the random missfiring you have is, either not properly clicked the leeds to the spark plugs, or your leeds are old and by removing them are cracked, or slightly moved ...

...missfiring on cylinder #6. I even changed the spark plug and wires to a new one. I can't find any vaccuum leaks. Any answers? I've had enough with this truck. do you have a seperate coil for each ...

Question about Porsche Boxster

1 Answer

missfire my 2.5 20 valve has started to missfire when it warms up,and only does it at low revs,has anybody got any ideas what could be causing this ?. Thanks On the assumption that normal servicing is

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