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hesitation problems - 6G Celicas Forums

Topic #37616 19 posts Started by 96c-oneconv
As some of you might already know I have a 3rd gen 3sgte st205 swap. My problem started yesterday. But it's not consistant. Basically sometimes it wont boost at all and bogs out when stepping on the gas in every gear. Then it goes back to boosting 15psi which is my current set-up. My current mods are turbosmart blowoff, high flow intake, greddy sp exhaust. The rest is still stock. Any ideas?
Thanks
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QUOTE(96c-oneconv @ May 23, 2006 - 4:10 PM) [snapback]437042[/snapback]
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As some of you might already know I have a 3rd gen 3sgte st205 swap. My problem started yesterday. But it's not consistant. Basically sometimes it wont boost at all and bogs out when stepping on the gas in every gear. Then it goes back to boosting 15psi which is my current set-up. My current mods are turbosmart blowoff, high flow intake, greddy sp exhaust. The rest is still stock. Any ideas?
Thanks


sounds like what my car does when it heatsoaks and retards timing. if you make ANY boost at all, it feels kinda like fuel cut. then when i get moving for a while and the temp sensor cools down, it gets back to normal.

has it been hot out lately? or have you been getting stuck in traffic? i think ive heard that this is a fairly common problem.

This post has been edited by gtfc115: May 23, 2006 - 6:58 PM
No the weather as been in the 50's lately and nothing but rain. Also I'm running the water to air st205 chargecooler constantly.
check your ecu for codes

check for boost leaks

15PSI - 30MPG - Megasquirt Tuned
I'm not getting any check engine light and there seems to be no boost leaks.
I would bet your bov is leaking.
Can I suggest bad batch of gas.

I will return one day.
how old are your ignition components?

Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered
Well I narrowed it down to the electrical system. Basically if I play my stereo to loud were it requires extra juice the car bucks and bogs. Same thing goes if I try to put my windows down while boosting it bucks and bogs. Has anyone ever experienced this before?
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QUOTE(presure2 @ May 26, 2006 - 4:26 PM) [snapback]438292[/snapback]
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how old are your ignition components?


Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered
3rd gen 3s-gte alternator are prown to brake when subduede (correct word?) to too much heat. Since I dont see the cold air snorkel that normally is attached could be failure of your alternator.

JDM Powerplant installed, BPU coming very soon!
Thanks I going to change all the ignition components soon. But do you think the battery would still charge if it is my alternator?
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QUOTE(96c-oneconv @ May 28, 2006 - 2:16 PM) [snapback]438698[/snapback]
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Thanks I going to change all the ignition components soon. But do you think the battery would still charge if it is my alternator?


It depends on the condition of the battery. Running a good battery with a bad alternator for very long can destroy the battery. The same is true the other way. The battery and alternator have a symbiotic relationship and a bad one of either can take the other one down if not addressed relatively quickly.

QUOTE(lagos @ Jul 10, 2006 - 1:55 PM) [snapback]454118[/snapback]i know your trying to do the right thing for your motor, but this is one of those times where you should just trust the guys who have had their swaps for a while and have done a ton of research into this.
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QUOTE(Kadett @ May 28, 2006 - 10:02 AM) [snapback]438631[/snapback]
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3rd gen 3s-gte alternator are prown to brake when subduede (correct word?) to too much heat. Since I dont see the cold air snorkel that normally is attached could be failure of your alternator.



i dont have the snorkel or any of the protective stuff they include with the gt4 on mine. havent had it for over 2 yrs and never had a problem with my altinator.


so umm ...yeah...... how old are your plugs, wires, cap, rotor?

15PSI - 30MPG - Megasquirt Tuned
The plugs were changed 150 miles ago. As for plug wires, rotor, cap are still what came with the motor. The only other modification I made recently is a supra walbro fuel pump.
Sounds like a loose connection with an ignition or wiring thereof.

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ahh. check the grounding on the pump! if it started after you installed that could be it, it is just getting enough juice but when other stuff starts pulling juice its just not enough...

Steve

If Columbus was told, "use the search function," he would have learned that the World was flat.
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QUOTE
>As for plug wires, rotor, cap are still what came with the motor.



im willing to bet that this is your problem

15PSI - 30MPG - Megasquirt Tuned