PRC solenoid - Fuel mileage question
- solo_ryder
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PRC solenoid - Fuel mileage question
So, I have recently replaced my o2's with some good working ones (used but good) and my car is still getting crappy fuel mileage, I am not impressed at all with the mileage that I am getting even though I am running pretty stoich when I am driving. Something that I noticed is that when I am sitting at a light the car will be idleing fine, then all of a sudden it will shudder a slight bit and not run as well and sometimes it will die due to flooding i am guessing. When this happens the car is running RICH, I can verify this so it is not a question. My question is why is it doing this? Is it related to the PRC soleniod at all? Does the PRC solenoid affect mileage on a jspec Millenia DE? I currently have my fpr hooked up to my IM like alot of other users do on this forum. o2 sensors?
Any help or insight would be appreciated.
Any help or insight would be appreciated.
- Kirk95gs
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Re: PRC solenoid - Fuel mileage question
Hey solo I dont know if you have a cat or not or if it has been replaced lately, but I do know if it is old/clogged up it will cause the o2's to get a inproper reading. This would cause poor gas/mileage and idle issues.
- solo_ryder
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Re: PRC solenoid - Fuel mileage question
No cat man, running headers, 2.5" ss mandrel pipe, 18" straight through resonator and megan mufflerKirk95gs wrote:Hey solo I dont know if you have a cat or not or if it has been replaced lately, but I do know if it is old/clogged up it will cause the o2's to get a inproper reading. This would cause poor gas/mileage and idle issues.
- mx3autozam
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Re: PRC solenoid - Fuel mileage question
the PRC won't effec t gas mileage. i don't run it and I always got perfect gas mileage.
93 Mazda MX3 KLZE Turbo
- se7en
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Re: PRC solenoid - Fuel mileage question
ya, most people just unplug the vacuum lines to the prc solenoid, and run a vacuum line directly from the intake to the FPR.
that isn't your problem. Try testing your coolant temp sensor(the green plug one on the waterneck because that tells the ecu how hot or cold the coolant is, and adds or removes fuel as needed.
I hope that helps.
7
that isn't your problem. Try testing your coolant temp sensor(the green plug one on the waterneck because that tells the ecu how hot or cold the coolant is, and adds or removes fuel as needed.
I hope that helps.
7
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- solo_ryder
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Re: PRC solenoid - Fuel mileage question
I will test it but I have no idea what that has to do with fuel.
- se7en
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Re: PRC solenoid - Fuel mileage question
that sensor tells the ecu if the engine is cold. Then, if it is cold, the ECU adds fuel to help warm up the engine. If it showing more than normal resistance, the engine will run way rich.
1992 mx-3 GS-T, 10-12psi, T3/t4 hybrid, Turbosmart WG, AFPR, SSAC TURBO pipes, MSD Blaster coil, K&N, AEM W/B, MSnS(full standalone), 225Whp street tuned(10psi), 245Whp (12psi)(300bhp!!!)
1992 Fairlady Z(JDM RHD) 2+2 TT black(done!)700whp+
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1992 Fairlady Z(JDM RHD) 2+2 TT black(done!)700whp+
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Re: PRC solenoid - Fuel mileage question
heres a newbie ? what is the PRC?
92 Blaze Red MAZDA Mx3 <GS> ZE, millenia manifold. gutted interior, filled mounts, fidanza fw, act 6puck.
- solo_ryder
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Re: PRC solenoid - Fuel mileage question
That is only when it is cold though, my temp gauge from what I can see is quite accurate (for stock gauges).se7en wrote:that sensor tells the ecu if the engine is cold. Then, if it is cold, the ECU adds fuel to help warm up the engine. If it showing more than normal resistance, the engine will run way rich.
MgXs3 - PRC stands for pressure regualtor controler, it helps the FPR it seems to aid in making the correct fuel pressure IIRC.
- se7en
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Re: PRC solenoid - Fuel mileage question
the gauge runs off a separate sensor alltogether.
there is three coolant temp sensors.(sometimes two)
If any one is not working, it will run rich.
7
there is three coolant temp sensors.(sometimes two)
If any one is not working, it will run rich.
7
solo_ryder wrote:That is only when it is cold though, my temp gauge from what I can see is quite accurate (for stock gauges).se7en wrote:that sensor tells the ecu if the engine is cold. Then, if it is cold, the ECU adds fuel to help warm up the engine. If it showing more than normal resistance, the engine will run way rich.
MgXs3 - PRC stands for pressure regualtor controler, it helps the FPR it seems to aid in making the correct fuel pressure IIRC.
1992 mx-3 GS-T, 10-12psi, T3/t4 hybrid, Turbosmart WG, AFPR, SSAC TURBO pipes, MSD Blaster coil, K&N, AEM W/B, MSnS(full standalone), 225Whp street tuned(10psi), 245Whp (12psi)(300bhp!!!)
1992 Fairlady Z(JDM RHD) 2+2 TT black(done!)700whp+
My Feedback
Don't Click Here! Trust me,Time waster!
1992 Fairlady Z(JDM RHD) 2+2 TT black(done!)700whp+
My Feedback
Don't Click Here! Trust me,Time waster!