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Location:
A.C.T
Registered:
May 2004
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engine troubles 4afe
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Wed, 26 January 2005 07:55
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Ok well i have a 1991 nova with a 4afe in it.
i changed the battery in the car and since i have had problems with it being really really laggy.
i think i have diagnosed the problem..
the air intake is not a constant stream instead of sucking air in at a constant rate it chuggs..
by chuggs i mean
<insert voice here>chug chug chug chug chug chug<insert voice here>
the car runs like it's got no low down power at all.. and revs up real real slow...
i have tried putting the old battery back in but still the same problem...
i'm really confused.. could i have tripped the throttle sensor or something like that when i changed the battery?
has the car gone into some sort of engine management mode?
in short i need help...
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Location:
Somewhere on a dirt bowl ...
Registered:
August 2004
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Re: engine troubles 4afe
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Wed, 26 January 2005 09:19
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In a way it sounds like there could either be a blockage somewhere or more then likely you've accidently knocked a spark lead off the dissy. Just push on them and see what happens and do the same on the spark plugs as well, as well as the coil.
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Location:
A.C.T
Registered:
May 2004
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Re: engine troubles 4afe
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Wed, 26 January 2005 12:00
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the 4afe i have has high tension leads and can't be detached from the dizzy..
i have changed the spark plugs and pushed in all the leads....
i'm thinking making i've done something to the dizzy..
when i changhed battery's i didn't realize i hadn't grounded the battery all that well..
then went for a 3 hour drive..
it's grounded real well now.. but didn't fix problem...
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Location:
A.C.T
Registered:
May 2004
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Re: engine troubles 4afe
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Fri, 28 January 2005 04:34
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anyone have any more ideas?
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Location:
perth
Registered:
September 2004
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Re: engine troubles 4afe
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Tue, 01 February 2005 11:54
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I had a similar problem after a battery died in my ae95. It was the alternator brushes... once worn out the battery soon dies and problem continues with a new battery as it's not getting any charge. Quite cheap and easy to fix and detect with an alternator tester. Hope it helps 
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I supported Toymods
Location:
Frankston, Victoria
Registered:
April 2004
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Re: engine troubles 4afe
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Tue, 01 February 2005 16:25
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my dad had the EXACT same problem with the 4afc in his AE92. It turned out to be that his dizzy connections (under the top part of the dizzy cap) needed a little bit of a sand down, that was it. But while you are at it, sand down the dizzy spinning thing (i aint to technical with names).
Anyway hope that helps.
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Location:
A.C.T
Registered:
May 2004
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Re: engine troubles 4afe
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Thu, 03 February 2005 12:40
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thanks for the help guys sounds promising they were the 2 things i thoght it may have been..
i'm going to have a look at it this weekend. so hopefullly i can fix it.,.. did you just get new bushes for the alternator?
where did you buy them from?
i'll open up the dizzy as well then weekend and have a look.
sounds like it might well be the dizzy.. maybe build up due to bad grounding...
thanks heapsguys.
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Location:
A.C.T
Registered:
May 2004
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Re: engine troubles 4afe
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Sun, 06 February 2005 06:13
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Ok well today i took apart my dizzy.
so much crap has collected on the little connectors.. i cleaned them up... i thoght yeh her we go ... then car is exaxctly the same as it was b4..
think it's probably the alternator.. so i'm going to take that apart in the week and have a closer look.
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Location:
Rocklea qld
Registered:
February 2003
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Re: engine troubles 4afe
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Sun, 06 February 2005 09:09
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alternater will not make your car laggy. just stop it from charging your battery. anychance you had something left on in the car so when you put the battery terminals on you shaorted out something. is it carby or efi..check u havent shorted anything or is the dizzy loose?? maybe u moved it a touch
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Location:
A.C.T
Registered:
May 2004
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Re: engine troubles 4afe
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Wed, 16 February 2005 07:58
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Well i replaced my alternater and the car is running alot better.
still laggy but at least the car is running now.. it started to get about 10% power at some times and the battery light came on.. now i'm pretty sure it has got something to do with my fuel because the car is running very rich now.
the 4afe is the efi engine.
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Registered:
May 2004
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Re: engine troubles 4afe
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Wed, 16 February 2005 11:03
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I hope you removed and fitted your battery correctly.
Negative off first and on last.
This is to prevent ECU spiking! Hope this isn't your problem. 
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