1992 Honda Civic Si EH . Engine miss fires after 20min ?

[XxDizzyxX]

Hello,

So after about 15-20mins of driving or under pressure, like going up a hill.

the car 'feels' like its in two higher gear going to slow. not that I'm doing that.
My dad says its miss firing so we replaced the spark plugs but didn't seem to help.

any suggestions ?

MY CAR:
http://redbook.com.au/used-cars/details.aspx?R=71069&__Qpb=true&Cr=0&__Ns=p_Make_String|0||p_ClassificationType_String| 0||p_Family_String|0||p_Year_String|1||p_SequenceN um_Int32|0&SearchAction=N&__N=2994%204294956040%204294843458%204294965375%20 4294913196%204294957648&silo=1300&seot=1&__Nne=15&trecs=2&__sid=129325A916C2

[dougie_504]

So...after 15-20 mins your car starts feeling weak?

What speed/gear are you traveling at?

Maybe it's not getting enough air? How clean is your TB/IM?

[hitoriko]

could also be your airfilter check taht too

[XxDizzyxX]

So...after 15-20 mins your car starts feeling weak?

What speed/gear are you traveling at?

Maybe it's not getting enough air? How clean is your TB/IM?

what do you mean by TB? timing belt. and IM??

[Vvvtec]

what do you mean by TB? timing belt. and IM??

TB = Throttle Body
IM = Intake Manifold

:)

[XxDizzyxX]

we had some spare Nissan pulsar spark plug leads and thats seemed to fix the problem, only thing is
that they are to big for my civic.

where can i find some Ignition leads from online?

[hitoriko]

ebay should ahve them

[XxDizzyxX]

yeah, but I'm a bit confused in what im looking for..

[quangsuke]

you can go to autobarn and ask for spark leads to suit your car.
you can buy the individually or as a set.
individual ones are cheaper if u only want to change one etc.

set would set u back around 90.

most likely one or more of your leads are wrecked.

[XxDizzyxX]

thanks :D