Another p2178
05-21-2013, 09:35 AM
#1
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Another p2178
Ok guys I'm back for help. I popped another cel p2178. And gets irritating me. It gave me 3 choices
1. Leaking injectors
2. Failed maf
3. I believe running rich. I forgot the 3rd choice.
Any idea where to start looking? I replaced the whole fuel rail with the 2010 upgrade fuel so I doubt it's the injectors. How would I know if my maf is bad? I know I need a retune so if any body can tune me please ley me know ASAP. I'm located in Houston Thanks.
1. Leaking injectors
2. Failed maf
3. I believe running rich. I forgot the 3rd choice.
Any idea where to start looking? I replaced the whole fuel rail with the 2010 upgrade fuel so I doubt it's the injectors. How would I know if my maf is bad? I know I need a retune so if any body can tune me please ley me know ASAP. I'm located in Houston Thanks.
05-21-2013, 10:09 AM
#4
Jaygo whats up dude!
P2178 is System Too Rich Off idle
Most ppl with this issue have found that they bypass valve in the turbo had a tear in the diaphragm. So a new bypass valve solved the issue. Others have replaced their MAP sensor and others have replaced the purge valve in the canister in the back of the car near the fuel tank. If this sticks open it could be constantly venting fumes into the IM.
If it were me, I'd check for small boost leaks and most definitely check the bypass valve in the turbo for tears. Is your turbo stock still? no blow off valve? Also if you have an untuned intake, it could also cause the code to pop up.
It all depends bro...
P2178 is System Too Rich Off idle
Most ppl with this issue have found that they bypass valve in the turbo had a tear in the diaphragm. So a new bypass valve solved the issue. Others have replaced their MAP sensor and others have replaced the purge valve in the canister in the back of the car near the fuel tank. If this sticks open it could be constantly venting fumes into the IM.
If it were me, I'd check for small boost leaks and most definitely check the bypass valve in the turbo for tears. Is your turbo stock still? no blow off valve? Also if you have an untuned intake, it could also cause the code to pop up.
It all depends bro...
05-21-2013, 11:33 AM
#6
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Jaygo whats up dude!
P2178 is System Too Rich Off idle
Most ppl with this issue have found that they bypass valve in the turbo had a tear in the diaphragm. So a new bypass valve solved the issue. Others have replaced their MAP sensor and others have replaced the purge valve in the canister in the back of the car near the fuel tank. If this sticks open it could be constantly venting fumes into the IM.
If it were me, I'd check for small boost leaks and most definitely check the bypass valve in the turbo for tears. Is your turbo stock still? no blow off valve? Also if you have an untuned intake, it could also cause the code to pop up.
It all depends bro...
P2178 is System Too Rich Off idle
Most ppl with this issue have found that they bypass valve in the turbo had a tear in the diaphragm. So a new bypass valve solved the issue. Others have replaced their MAP sensor and others have replaced the purge valve in the canister in the back of the car near the fuel tank. If this sticks open it could be constantly venting fumes into the IM.
If it were me, I'd check for small boost leaks and most definitely check the bypass valve in the turbo for tears. Is your turbo stock still? no blow off valve? Also if you have an untuned intake, it could also cause the code to pop up.
It all depends bro...
05-21-2013, 11:46 AM
#8
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Are you in Houston. I'm on my cell and it doesn't say where you are located. How much is a new maf? Or should I try cleaning it first
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