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The Terminator
Engine/Tuning
03 Cobra Swap in GT Help. P0171, P0174
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<blockquote data-quote="Roush6018" data-source="post: 16640526" data-attributes="member: 78571"><p>I looked up the code, po171. Bank 1 detecting a lean condition. Bank 1 is passenger side. The info said either the fuel system is weak on that side, bank1, or a vacuum leak near the bank 1 Intake ports . This is causing a lean condition the computer can see and it turns on the SES light and sets the code.</p><p></p><p>I have an idea to check your fuel pressure. The fuel line supplies fuel on the passenger side of the engine. I have had a problem with my cobra fuel pumps, they split the factory fuel tubing inside the tank. This would cause low fuel pressure. I installed a PPRV delete. </p><p></p><p>use a scan tool to look at the bank 1 02 sensor and make sure it is reacting to the fuel being burned. This is the sensor the PCM is using In addition to the readings from the MAF to determine your car is running lean on bank 1.</p></blockquote><p></p>
[QUOTE="Roush6018, post: 16640526, member: 78571"] I looked up the code, po171. Bank 1 detecting a lean condition. Bank 1 is passenger side. The info said either the fuel system is weak on that side, bank1, or a vacuum leak near the bank 1 Intake ports . This is causing a lean condition the computer can see and it turns on the SES light and sets the code. I have an idea to check your fuel pressure. The fuel line supplies fuel on the passenger side of the engine. I have had a problem with my cobra fuel pumps, they split the factory fuel tubing inside the tank. This would cause low fuel pressure. I installed a PPRV delete. use a scan tool to look at the bank 1 02 sensor and make sure it is reacting to the fuel being burned. This is the sensor the PCM is using In addition to the readings from the MAF to determine your car is running lean on bank 1. [/QUOTE]
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03 Cobra Swap in GT Help. P0171, P0174
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