AHA! i found the problem! now i need to know how to fix it.
#12
RE: AHA! i found the problem! now i need to know how to fix it.
ORIGINAL: 90GTRagtop
How exactly does extra air bypassing the mass air flow meter and reducing the fuel to air ratio make it run rich?
ORIGINAL: schwindty
Vaccum leaks make the engine run rich .........
Vaccum leaks make the engine run rich .........
#13
RE: AHA! i found the problem! now i need to know how to fix it.
You cant run a supercharger without a secondary fuel pump, thats the problem
ORIGINAL: marx91
you do have an inline fuel pump too right?
ORIGINAL: Syndicate
also if this can help. I had a supercharger in it. Stock fuel pump. stock injectors.
also if this can help. I had a supercharger in it. Stock fuel pump. stock injectors.
#14
RE: AHA! i found the problem! now i need to know how to fix it.
ORIGINAL: blowninjected
You cant run a supercharger without a secondary fuel pump, thats the problem
You cant run a supercharger without a secondary fuel pump, thats the problem
ORIGINAL: marx91
you do have an inline fuel pump too right?
ORIGINAL: Syndicate
also if this can help. I had a supercharger in it. Stock fuel pump. stock injectors.
also if this can help. I had a supercharger in it. Stock fuel pump. stock injectors.
#15
RE: AHA! i found the problem! now i need to know how to fix it.
Code 172 is lack of HO2S-1 switches, system indicates lean bank 1(passenger side only), the fact that you don't have code 176 (lack of HO2S-1 switches, system indicates lean bank 2(driver's side)) showing up also, doesn't necessarily mean that the whole engine is seeing a rich condition. It's something specific to the RH side cilynders only.
It's always recommended to check for any vacuum leaks, these will cause a lean condition in a MAF system, vacuum leaks in a SD system will cause a rich condition b/c it will limit the vacuum to the MAP and will cause the system to calibrate for more fuel in the mixture.
In your case, it could also mean that the RH O2 sensor is 10-7, when the heater element inside the O2 goes fubar, a common failure, it doesn't allow it to reach operating temperature (over 560°F) and causes a problem. If vauum leaks are not present it could be time for the O2 sensor to be replaced. My 2¢.
It's always recommended to check for any vacuum leaks, these will cause a lean condition in a MAF system, vacuum leaks in a SD system will cause a rich condition b/c it will limit the vacuum to the MAP and will cause the system to calibrate for more fuel in the mixture.
In your case, it could also mean that the RH O2 sensor is 10-7, when the heater element inside the O2 goes fubar, a common failure, it doesn't allow it to reach operating temperature (over 560°F) and causes a problem. If vauum leaks are not present it could be time for the O2 sensor to be replaced. My 2¢.
#16
RE: AHA! i found the problem! now i need to know how to fix it.
Thanks all for the feedback. Since the vaccume hoses are only 3 feet i will replace them.. Or i can do a quick check with the old choke/carb cleaner. Thank you
#17
RE: AHA! i found the problem! now i need to know how to fix it.
i read the other day that it is not recommended to run a secondary pump on sc cars?i cant remeber where though
#18
RE: AHA! i found the problem! now i need to know how to fix it.
problem fixxed! i replaced my O2 sensors with bosch. And its running very powerful! omg i went from 4 cyl speed to a rocket.. Im also having this car for sale $4995.. if anyone wants to buy it let me know cenitus@hotmail.com 602 291 2086 thanks
1994 Mustang GT 5.0 L Procharger 11lbs of boost. P1SC
running mighty smooth
1994 Mustang GT 5.0 L Procharger 11lbs of boost. P1SC
running mighty smooth
Thread
Thread Starter
Forum
Replies
Last Post
MtnMustang
Classic Mustangs (Tech)
2
08-16-2015 08:07 PM
KEM Motorworks
5.0L (1979-1995) Mustang
20
08-14-2015 10:13 PM