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Location:
Vic
Registered:
May 2002
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Location:
usa
Registered:
October 2003
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Re: 4age timing set
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Tue, 09 March 2004 08:24
 
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possibly tps or dizzy?
i had the same problem with mine.. 33 advanced was the only way it would run. i picked up a 100kw dizzy from the junker for 20 bucks and its dead on 10 now!
jeremy
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Location:
Vic
Registered:
May 2002
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Re: 4age timing set
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Tue, 09 March 2004 08:49
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it appears to not be going into diagnostic mode so i can set the timing correctly
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 4age timing set
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Tue, 09 March 2004 12:23
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are you shorting out the connector BEFORE you start the car up?
Sometimes the ECU doesnt want to go into diagnostic mode. Just try it a few times having the connector shorted from when the car is completely off. ALso try earthing to the chassis rather than the wire.
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Location:
NSW, East Coast
Registered:
July 2003
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Re: 4age timing set
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Tue, 09 March 2004 12:29
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| THE WITZL wrote on Tue, 09 March 2004 23:23 |
are you shorting out the connector BEFORE you start the car up?
Sometimes the ECU doesnt want to go into diagnostic mode. Just try it a few times having the connector shorted from when the car is completely off. ALso try earthing to the chassis rather than the wire.
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You beat me to it.
I would also make sure you have the right terminals (i made that mistake once) and if there hasnt been a cap over the terminals they would get quite dirty, some crby cleaner and old tooth brush should do the trick.
Hope you can source the problem.
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Location:
Vic
Registered:
May 2002
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Re: 4age timing set
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Wed, 10 March 2004 10:29
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never thought of doing it before i started the car
Thanx for that
Ive tried shorting E1 & the chassis.
I should hook up the engine light while i'm down there.
Any 1 know what a safe wattage is to use?
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Location:
Vic
Registered:
May 2002
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Re: 4age timing set
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Thu, 11 March 2004 08:25
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Still no luck doing the timing.
Can some 1 go through the process of exactly how they do it for me.
Its going into diagnostic mode cause i checked for faults & it hasnt any. i even unpluged the map sensor to make sure it recorded a fault.
The timing still adjust when in diagnostic mode though.
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Location:
NSW, East Coast
Registered:
July 2003
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Location:
Vic
Registered:
May 2002
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Re: 4age timing set
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Thu, 11 March 2004 10:37
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yeah ive followed those instructions but the timiming still advances with revs with T shorted.
I now know its going into diagnostic mode cause i hooked up a light.
I tried shorting T before i start the engine as suggested but it still results in the same.
The ECU is giving no fault codes & everything test ok.
The motor runs fine but i wanted to check the timing before the drags this weekend
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Location:
NSW, East Coast
Registered:
July 2003
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Re: 4age timing set
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Thu, 11 March 2004 10:51
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Then its got me beat.
What about the timing light is it in good nick, i dont want to suggest that its broken but were all at the mercy of our machines, maybe yours has had its day.
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Location:
Vic
Registered:
May 2002
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Re: 4age timing set
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Thu, 11 March 2004 12:39
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i will try a new light but i expect its good.
when i rev it the computer seems to change the timing as it should normally but it shouldnt be doing it in diagnostic mode.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: 4age timing set
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Thu, 11 March 2004 13:23
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Brad, dumb quiestion, but are you sure you have the right ignitor?
the 4AG uses the VAST timing system, where during starting the timing is set by the mechanical advance, and after that a signal is sent to ECU to get modified, and then sent back to trigger the ignitor to fire coil...
if ti aint the right ignitor, that may be why?
grasping at straws here, is the dizzy a locked 4AG dizzy? does it have any mech advance? maybe computer is a little 'odd' can you try another?
Cya, Stewart
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Location:
Vic
Registered:
May 2002
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Re: 4age timing set
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Fri, 12 March 2004 06:27
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i assume its the correct ignitor, plugs is correct & nothing has been modified.
Its the proper 4ag dizzy & it appears to be in good condition.
Are the plugs for the computer the same on a bigport AE92 motor as my AE86 RWD engine?
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