troubled 1990 sp

KEEVRS · 16-07-2003, 04:33 PM

:?
hey all,

can anyone advise me whther my astina sp 1990 model would suffer any electrical faults in the engine sysytem.

the engine seems to choke or cough at about 2400rpm.
i thought the clutch was on its way out , but when it "chokes" the revs drop , they dont rise, when im driving it gives the feeling that im bunnyhopping.

could it be the o2 sensor? or any other inherent problem?

any help would be great!

Keevrs

93SP · 16-07-2003, 05:39 PM

How long since the spark plug leads have been changed? That would be the first thing I'd check out. It's a relatively common problem with our model...

Otherwise...air filter, fuel filter etc. But I'd almost bet money on plug leads, especially if they are old.

Hope this helps!

Cosmo Dude · 16-07-2003, 08:55 PM

Keevers,
Follow 93SP's advice. The next step is the expensive one, it could be the ignition module if it same in all gears or the air flow meter if mainly under acceleration.
Go the 93SP route first as if it isn't the cause they are due anyway.

Rod

16-07-2003, 04:33 PM	#1
KEEVRS Junior Member Join Date: Jul 2003 Location: .... Car: . Posts: 122	troubled 1990 sp :? hey all, can anyone advise me whther my astina sp 1990 model would suffer any electrical faults in the engine sysytem. the engine seems to choke or cough at about 2400rpm. i thought the clutch was on its way out , but when it "chokes" the revs drop , they dont rise, when im driving it gives the feeling that im bunnyhopping. could it be the o2 sensor? or any other inherent problem? any help would be great! Keevrs

16-07-2003, 08:55 PM	#3
Cosmo Dude コスモ Join Date: Dec 2002 Location: Location: Vic Car: Mazda '95 Astina I4, '86 B2K and '10 3 MZR-CD Posts: 7,888 View Photos By: Cosmo Dude	Keevers, Follow 93SP's advice. The next step is the expensive one, it could be the ignition module if it same in all gears or the air flow meter if mainly under acceleration. Go the 93SP route first as if it isn't the cause they are due anyway. Rod __________________ My 'stina Hatch

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16-07-2003, 05:39 PM	#2
93SP Junior Member Join Date: Jun 2003 Location: Canberra, Australia Posts: 29	How long since the spark plug leads have been changed? That would be the first thing I'd check out. It's a relatively common problem with our model... Otherwise...air filter, fuel filter etc. But I'd almost bet money on plug leads, especially if they are old. Hope this helps!