Car dies under heavy load
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Car dies under heavy load
I have a 92 v6 mx-3. A few months ago I swapped out the auto to 5spd. I have done the ingnition mod swap. Well heres the problem. Everytime I hammer on this car it will just shut off and I have to wait a few minutes to restart. I thought it was the ignition mod but it never did this when it was auto. I have a trouble code 46 but I have no idea what that is. Does anyone know what 46 is? And when I put the 5spd in all I did was bypass the clutch safety switch and never hooked up the reverse lights. Does that cause a problem?? Ok any help would be awesome. Thanks
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Re: Car dies under heavy load
Code 46 is VRIS #2 solenoid according to my list
OldMan
OldMan
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Re: Car dies under heavy load
Ok so its VRIS #2. But what exactly is that?? And how do I fix it?? More help please.
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Re: Car dies under heavy load
Can anyone help me fix this. And is this why my car stalls??
Re: Car dies under heavy load
http://www.mx-3.com/manuals/showimg.php ... F2-094.gif" onclick="window.open(this.href);return false;
The VRIS-2 solenoid is supposed to alter the intake manifold configuration at a certain RPM (4250 RPM for K8).
The VRIS-2 solenoid is supposed to alter the intake manifold configuration at a certain RPM (4250 RPM for K8).
![Image](http://img517.imageshack.us/img517/5927/fliegetn0ss7.gif)
Re: Car dies under heavy load
Sounds like it might be a fuel delivery problem.. maybe the pressure is too low. Do you have a pressure gauge?MazdaMan85 wrote:I have a 92 v6 mx-3. A few months ago I swapped out the auto to 5spd. I have done the ingnition mod swap. Well heres the problem. Everytime I hammer on this car it will just shut off and I have to wait a few minutes to restart. I thought it was the ignition mod but it never did this when it was auto. I have a trouble code 46 but I have no idea what that is. Does anyone know what 46 is? And when I put the 5spd in all I did was bypass the clutch safety switch and never hooked up the reverse lights. Does that cause a problem?? Ok any help would be awesome. Thanks
- Gord
1996 MX-3 GS-ZE 2.5L 5spd
KLZE+LSD / Headers / KL02 VAF / Clutchmasters stage-I / Fidanza 9lb flywheel / Eibach Pro Kit / Tokico HPs / Urethane bushings & mounts / SSR Comp-C 16x7 / General Exclaim UHP 205/45R16 / Wilwood 13" brakes / Whiteline rear swaybar / Carputer / Software Crossover / Infinity components+subs / 41hz Tripath Amp9 / Trunk SLA batt / Keyless entry
1996 MX-3 GS-ZE 2.5L 5spd
KLZE+LSD / Headers / KL02 VAF / Clutchmasters stage-I / Fidanza 9lb flywheel / Eibach Pro Kit / Tokico HPs / Urethane bushings & mounts / SSR Comp-C 16x7 / General Exclaim UHP 205/45R16 / Wilwood 13" brakes / Whiteline rear swaybar / Carputer / Software Crossover / Infinity components+subs / 41hz Tripath Amp9 / Trunk SLA batt / Keyless entry
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Re: Car dies under heavy load
Well the code 46 is gone after messing around with the wires and stuff back there. But it still cuts off when its hot and I push it. I once in a while get code 25 which is pressure regulator solenoid vavle and don't know why it would make a difference now. I always got that with the auto and it never quit on me. But now it does. I have a feeling it is the internal coil overheating or breaking down when it gets hot. I have done the external ingnition module already. I hope I can get this fixed because this is the only thing stoping me car now. HELP
Re: Car dies under heavy load
Accccctually.... the PRC valve causes the regulator to increase fuel pressure, so if that fails and the valve is stuck closed, maybe it can't flow enough fuel to handle WOT...MazdaMan85 wrote:Well the code 46 is gone after messing around with the wires and stuff back there. But it still cuts off when its hot and I push it. I once in a while get code 25 which is pressure regulator solenoid vavle and don't know why it would make a difference now. I always got that with the auto and it never quit on me. But now it does. I have a feeling it is the internal coil overheating or breaking down when it gets hot. I have done the external ingnition module already. I hope I can get this fixed because this is the only thing stoping me car now. HELP
You could try running a vacuum line from the FPR straight back to a vacuum source bypassing the valve and see if that helps.
- Gord
1996 MX-3 GS-ZE 2.5L 5spd
KLZE+LSD / Headers / KL02 VAF / Clutchmasters stage-I / Fidanza 9lb flywheel / Eibach Pro Kit / Tokico HPs / Urethane bushings & mounts / SSR Comp-C 16x7 / General Exclaim UHP 205/45R16 / Wilwood 13" brakes / Whiteline rear swaybar / Carputer / Software Crossover / Infinity components+subs / 41hz Tripath Amp9 / Trunk SLA batt / Keyless entry
1996 MX-3 GS-ZE 2.5L 5spd
KLZE+LSD / Headers / KL02 VAF / Clutchmasters stage-I / Fidanza 9lb flywheel / Eibach Pro Kit / Tokico HPs / Urethane bushings & mounts / SSR Comp-C 16x7 / General Exclaim UHP 205/45R16 / Wilwood 13" brakes / Whiteline rear swaybar / Carputer / Software Crossover / Infinity components+subs / 41hz Tripath Amp9 / Trunk SLA batt / Keyless entry
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Re: Car dies under heavy load
Oh that could be it. So where is a good vacuum source to use? And does anyone think it still could be the coil? These codes never show while driving. It stalls and then the codes show up and when I restart the car the cel never flashes. I'm going to check the coil and stuff later. Thanks so far for the help.
Re: Car dies under heavy load
When you say coil do you mean the distributor? I suppose it could be that, but that should cause hesitation and misfiring as well if that's the case. And I don't think the engine would heat quickly enough just under WOT to make any noticeable difference there.MazdaMan85 wrote:Oh that could be it. So where is a good vacuum source to use? And does anyone think it still could be the coil? These codes never show while driving. It stalls and then the codes show up and when I restart the car the cel never flashes. I'm going to check the coil and stuff later. Thanks so far for the help.
For a vacuum source, you could unplug the line the runs from the driver's side of the manifold to the solenoid on the air housing (if I remember correctly). I vaguely recall it being used for both the PRC and the EGR valves, but having an open EGR won't matter for this test.
*edit*
You know I was thinking .. maybe the reason you're noticing this behavior now (assuming nothing else has changed) is because the manual transmission is putting more of a torque load on the engine. Auto's will shift down gears under high load whereas manuals won't, and maybe that difference was enough to bog down the engine into stalling.
Do you hear any pinging at WOT?
- Gord
1996 MX-3 GS-ZE 2.5L 5spd
KLZE+LSD / Headers / KL02 VAF / Clutchmasters stage-I / Fidanza 9lb flywheel / Eibach Pro Kit / Tokico HPs / Urethane bushings & mounts / SSR Comp-C 16x7 / General Exclaim UHP 205/45R16 / Wilwood 13" brakes / Whiteline rear swaybar / Carputer / Software Crossover / Infinity components+subs / 41hz Tripath Amp9 / Trunk SLA batt / Keyless entry
1996 MX-3 GS-ZE 2.5L 5spd
KLZE+LSD / Headers / KL02 VAF / Clutchmasters stage-I / Fidanza 9lb flywheel / Eibach Pro Kit / Tokico HPs / Urethane bushings & mounts / SSR Comp-C 16x7 / General Exclaim UHP 205/45R16 / Wilwood 13" brakes / Whiteline rear swaybar / Carputer / Software Crossover / Infinity components+subs / 41hz Tripath Amp9 / Trunk SLA batt / Keyless entry
Re: Car dies under heavy load
I would think if it's a fuel pressure issue as soon as he backs off on the throttle the engine should resume normal operation. Just after starting your car but before it's warmed up try "hammering" on the throttle and see if it cuts out. As far as I know the ignition coil only cuts out when it's hot. As far as the coil goes did you totally disconnect the internal one? If not that could be an issue. Can anyone explain why, I can't remember?
Last edited by Daninski on August 6th, 2008, 2:53 pm, edited 1 time in total.
2004 Subaru WRX Silver, stage 2, minty interior.
2002 Subaru WRX Blue, SOLD (best E test numbers I've ever seen)
94 MX-6. Sold
92 GS KLZE 5 Speed
96 GS 5 speed, KLZE, Sold
95 GS Minty Shape Sold
92 GS Sold
92 GS Parts Car scrapped.
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I know you believe that you understand what you think I said but I'm sure you realize that what you heard is not what I meant.
2002 Subaru WRX Blue, SOLD (best E test numbers I've ever seen)
94 MX-6. Sold
92 GS KLZE 5 Speed
96 GS 5 speed, KLZE, Sold
95 GS Minty Shape Sold
92 GS Sold
92 GS Parts Car scrapped.
Feedback viewtopic.php?f=37&t=66348" onclick="window.open(this.href);return false;
7477th member.
I know you believe that you understand what you think I said but I'm sure you realize that what you heard is not what I meant.
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Re: Car dies under heavy load
Ok I'm going to explain a little bit more about whats going on. If I start my car I can red line it as much as I want and I can go how ever fast I want with no issues. I feel the boost of power at around 4,250 rpm's. So I know the VRIS 2 is working. The thing I don't know is why it stalls after heating up. I don't have the external coil yet. I only have done the ignition module. I want to put the external coil on soon. I only get trouble codes when it quits. So maybe when it quits the fuel pressure drops and the ecm thinks thats the problem?? Once I do the coil I can then start eliminating things.
Re: Car dies under heavy load
sounds to me like classic disty/ignition coil problem. a car works for while, gets hot, shuts down, cools off, starts up -- 90% a new distributor solves it. just to be clear, you DO have to wait awhile before she'll start up again right?
given you have the HEI mod done, that adds some suspicion, still nonetheles, i think thats the place to start. you should see if you can borrow a known working one.
and nobody's asked yet if you checked for spark when it won't start. if no spark, then there's your answer
given you have the HEI mod done, that adds some suspicion, still nonetheles, i think thats the place to start. you should see if you can borrow a known working one.
and nobody's asked yet if you checked for spark when it won't start. if no spark, then there's your answer
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Re: Car dies under heavy load
Thats what I thought because when it shuts off I can't start it for about 30 seconds to a minute. It will fire but not start. I'll have to rewire everything sometime.
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Re: Car dies under heavy load
Finally got it fixed. I rewired everything and added the external coil. I had it up to 120 and no problems. Thanks mx3ers.