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Location:
Sydney
Registered:
July 2002
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 Somone said it before 'tits or tyres = Problems'
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Mon, 29 July 2002 01:59
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hey guys,
i seem to be having a problem with my car, AGAIN. Strange one this time. it is a 4age 100kw running a mt8 comp. Now it has been running in this format for a few months now and after the dyno tune no settings on the comp have been changed. When i put my foot down in first and sometimes second (occasionally third) it seems to have a fuel cut problem or an ignition problem, i dunno. It jerks, like it is kangarooing (that word looks funny).
It started of only happening very rarely but it seems to hap[pen more and more now. It happens all the time when it is cold when i easy the clutch out, i have to ride it so i can easy the gas really lightly just to avoid it. I have a few ideas but i was hopeing that one of your guys might have a simple explinatuion. i thought it might be a clogged fuel filter, stuffed pump, or some sort of igniton probor maybe even the finner filter air pod being clogged but i cleaning it like two weeks ago so i dunno. it also seems to have lost a bit of power since i originally got it (noticed as i cannot keep up with alot of cars i used to beat). Anyway any suggestions would be much appreciated
thanks guys
p.s
i was hoping to become a finacial memeber at the supercruise but i was on holidays (damn), i had a few mates attend though and they enjoyed, i will get there one day.
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I supported Toymods
Location:
Berowra-Sydney
Registered:
July 2002
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Re: Somone said it before 'tits or tyres = Problems'
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Mon, 29 July 2002 10:00
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i honestly have no idea, don't have that much experiance under my belt yet but i can only suggest a couple of things that i've had a problem with, one is check your ignition leads one may have a very high resistence (faulty lead) and therefor not delivering enough power to create a strong enough spark another could be a faulty spark plug, this has happened to me before, bought them brand new then one day the car just starting missing pretty bad and i worked it out to being a spark plug as i took the plugs out keyed the engine over watching to see the plugs spark and there was one which would spark about 1/3 times and prooved it was the plug as i then moved it to another lead and still did the same only suggestion i have is maybe its not delivering enough power to the plugs to create a large enough spark and during acceleration when there is a lot of fuel being pumped into the cylinders it makes it harder for the plugs to spark so if there is a weak plug this problem would magnify when more fuel is let into the engine durring take off.
anyway thats just an idea. 
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I supported Toymods
Location:
melbourne.victoria.austra...
Registered:
June 2002
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Re: Somone said it before 'tits or tyres = Problems'
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Mon, 29 July 2002 10:11
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when i had the ae92 levin i had a similar problem - it turned out to be a faulty earth on the drivers side strut tower connecting to the top of the head - once secure it stopped jerking and bunnyhopping ect.
just a thought..
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Location:
Perth WA
Registered:
July 2002
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Re: Somone said it before 'tits or tyres = Problems'
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Tue, 30 July 2002 11:04
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does the car cruise ok ?, what about free reving it ?
if its fuel it usually isnt occassional.Could be an ignition problem, but have you checked the basics ? when was the last time it got a fresh set of sparkplugs ? could also be an ECU problem in that its not advancing the timing as you open the throttle, or maybe even clogged/badly spraying injectors
Cam
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Location:
Sydney
Registered:
July 2002
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Re: Somone said it before 'tits or tyres = Problems'
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Tue, 30 July 2002 13:22
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hey guys,
um the plugs and leads are about six months old, they are platinum plugs and the leads are the standard ge leads. Um up cruising is fine, it is just when i accelarate hard or when it is cold even softley it does it.i hope it is not the ecu as it is a microtech and it gonna cost me heaps to replace. i am going to change the fuel filter tommorrow and see if it does anything but after that i am lost.
thanks guys
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Location:
South Australia
Registered:
July 2002
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Re: Somone said it before 'tits or tyres = Problems'
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Tue, 30 July 2002 14:46
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I'm not an expert on the configuration of the 100kW 4A-GE, but it may be a leaky intake manifold, or even the connection between the pod and the manifold. Not only does it deliver dirty air if you have a leak, but it sends your air-flow sensor spastic and it won't advance ignition properly and it'll send less fuel into the engine as well.
Leaky intake tends to get worse as times goes on.
I had that problem once, jerkyness if I put my foot down, started out in first at the beginning, then it goes worse as time went on and I could do it in third if I wasn't feather soft with my throttle application. As suspected, the spastic job that the previous owner had done on the rubber hose between the air filter pod and the T-VIS had gone bust and the rest is history.
AS it turns out, racing tape doesn't hold up to the vacuum in the air intake system 
But like I said I'm no expert
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I supported Toymods
Location:
Berowra-Sydney
Registered:
July 2002
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Re: Somone said it before 'tits or tyres = Problems'
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Tue, 30 July 2002 21:46
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Another time i had a problem with it be jerky and stuff whenever i gave it gas it wanted to stall, i put some fuel system treatment stuff in the tank and problem went away, could try that.
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Location:
Sydney
Registered:
July 2002
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Re: Somone said it before 'tits or tyres = Problems'
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Wed, 31 July 2002 12:05
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hey guys,
i think i might have sourced my problem, the fuel line is steel, now where it comes to met the bottom of the filter it has a 90 degree bend, the fuel filter has been twisted slightly at one stage and in the 90 bend it has twisted it, forming a kink., therefore restricting fuel, that combined with a old fitler and i think this may be the prob.
prob number two. removing the thing and putting a new one in, not the easies or jobs as when the filter moves slightly whilst undoing the bolt on the top, the steel pipe moves and causes more twisting. any secrets as to how to how to remove it. it is so simple but the bolts are two tight i think.
thanks people
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I supported Toymods
Location:
Berowra-Sydney
Registered:
July 2002
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Re: Somone said it before 'tits or tyres = Problems'
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Wed, 31 July 2002 12:17
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no idea how the fuel lines are set up in that car but is it possible to just rip that piping out abd replace it with a flexible fuel line? such as the rubber or silcon fuel lines u can get.
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Location:
Perth WA
Registered:
July 2002
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Re: Somone said it before 'tits or tyres = Problems'
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Thu, 01 August 2002 09:51
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Ive had probs before with the fuel filter nuts seizing, i just cut the fuel line at the bend and used high pressure rubber hose, be sure to use bezels on the fuel line to give the rubber hose something to stretch over, and good quality hose clamps
this setup means i can take the fuel filter out and hold it in a vice to get the lower nut off 
Cam
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Location:
Sydney
Registered:
July 2002
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Re: Somone said it before 'tits or tyres = Problems'
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Thu, 01 August 2002 14:05
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well i am back to scratching my noggin.
i replaced the fuel filter today and sure enough the old one was stuffed but once i instaled the new one it still did the same jerky thing. would the car idle nice if the pod filter was blocked???? it ides fine, starts fine and crusies ok but just when accelarating.
thanks for the help guys, i am getting a fuel regulater put on the line to find out if it is gettiong enough fuel tommorrow.
lata
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Toymods Board Member
I supported Toymods
Location:
Turramurra, Sydney.
Registered:
May 2002
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Re: Somone said it before 'tits or tyres = Problems'
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Thu, 01 August 2002 16:15
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Hey Cam, just wondering how you put a bezel on the fuel line.
If I new how to do it, it would make replacing fuel lines alot easier. I've discussed it with a few people, and no one's come up with a satisfactory way of doing it.
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Club Member
Location:
sydney
Registered:
May 2002
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Re: Somone said it before 'tits or tyres = Problems'
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Thu, 01 August 2002 23:00
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I would start by making sure everything like filters are in clean good working order so as to eliminate all the little problems.
have you cleaned the engine bay recently? make sure theres no water sitting around the spark plug seats causing an earth from the plug.
you may want to test the fuel pressure in the rail, even though you have replaced the fuel filter the pump may be fading and in need of replacement, also check the connections to the pump for deterioration.
have you checked for error codes? that would be the first thing to do, it may tell you if you have a faulty sender somewhere or some other problem.
next check youre compression to make sure you are not having internal issues, are you using any oil/water?
another fault could be the TPS, you could have knocked it or its just gone out of sinc over time.
also look for any vacume leaks particularly if you have air con, check the 2 vacume lines to the air con idle up controller
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Location:
Perth WA
Registered:
July 2002
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Re: Somone said it before 'tits or tyres = Problems'
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Fri, 02 August 2002 03:40
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| BigWorm wrote on Fri, 02 August 2002 12:15 AM |
Hey Cam, just wondering how you put a bezel on the fuel line.
If I new how to do it, it would make replacing fuel lines alot easier. I've discussed it with a few people, and no one's come up with a satisfactory way of doing it.
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i just soldered the little brass ring type ones on about 5mm down the line, but ive heard you can just slip them on and they will stay put because they are pretty tight fitting anyway
On the other hand i guess you could use a flaring tool on the pipe
Cam
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