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Old 01-28-2016, 11:03 PM   #1
SeaCompiler
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Converted slow MAF to fast MAF & received 18 fault codes lol!

I have a custom tune and I swapped the slow MAF to the fast MAF curious if it would affect drive-ability. I drove it to work, but when I left, it sputtered a few minutes after startup under mild acceleration and then threw all the codes listed below and I limped home! Anyway, I let the HF cats and O2 sensors cool down and then I swapped the MAF back to the old one and took it for a test drive and everything is fine again.Crazy how much of a difference the MAF made to cause this. I can't wait to get my car re-tuned with the new one post turbo install in a month.

Vehicle VIN: XXXXXXXXX
Vehicle Manufacturer: Chevrolet
Vehicle Calibration ID: Not present

Current Fault Log
------------------
P0036: HO2S Heater Control Circuit (Bank 1 Sensor 2)
P0054: Unknown code - More information may be available on the web
P0056: HO2S Heater Control Circuit (Bank 2 Sensor 2)
P0060: Unknown code - More information may be available on the web
P0137: O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)
P0138: O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
P013E: Unknown code - More information may be available on the web
P0141: O2 Sensor Heater Circuit (Bank 1 Sensor 2)
P0157: O2 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
P0158: O2 Sensor Circuit High Voltage (Bank 2 Sensor 2)
P0161: O2 Sensor Heater Circuit (Bank 2 Sensor 2)
P0641: Unknown code - More information may be available on the web
P2270: O2 Sensor Signal Stuck Lean bank1 Sensor2
P2272: O2 Sensor Signal Stuck Lean bank2 Sensor2
B2AAA: Unknown code - More information may be available on the web

Pending Fault Log
------------------
P013F: Unknown code - More information may be available on the web
P0335: Crankshaft Position Sensor A Circuit
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Old 01-28-2016, 11:06 PM   #2
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Quote:
Originally Posted by SeaCompiler View Post
I have a custom tune and I swapped the slow MAF to the fast MAF curious if it would affect drive-ability. I drove it to work, but when I left, it sputtered a few minutes after startup under mild acceleration and then threw all the codes listed below and I limped home! Anyway, I let the HF cats and O2 sensors cool down and then I swapped the MAF back to the old one and took it for a test drive and everything is fine again.Crazy how much of a difference the MAF made to cause this. I can't wait to get my car re-tuned with the new one post turbo install in a month.

Vehicle VIN: XXXXXXXXX
Vehicle Manufacturer: Chevrolet
Vehicle Calibration ID: Not present

Current Fault Log
------------------
P0036: HO2S Heater Control Circuit (Bank 1 Sensor 2)
P0054: Unknown code - More information may be available on the web
P0056: HO2S Heater Control Circuit (Bank 2 Sensor 2)
P0060: Unknown code - More information may be available on the web
P0137: O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)
P0138: O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
P013E: Unknown code - More information may be available on the web
P0141: O2 Sensor Heater Circuit (Bank 1 Sensor 2)
P0157: O2 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
P0158: O2 Sensor Circuit High Voltage (Bank 2 Sensor 2)
P0161: O2 Sensor Heater Circuit (Bank 2 Sensor 2)
P0641: Unknown code - More information may be available on the web
P2270: O2 Sensor Signal Stuck Lean bank1 Sensor2
P2272: O2 Sensor Signal Stuck Lean bank2 Sensor2
B2AAA: Unknown code - More information may be available on the web

Pending Fault Log
------------------
P013F: Unknown code - More information may be available on the web
P0335: Crankshaft Position Sensor A Circuit

Was that the WEAK vs STRONG MAF posted previously?
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Old 01-28-2016, 11:13 PM   #3
SeaCompiler
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Quote:
Originally Posted by ghosted View Post
Was that the WEAK vs STRONG MAF posted previously?
There is a really nice post from Apex about how to tell the diff between the weak and strong ones. You looking for this?
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Old 01-28-2016, 11:15 PM   #4
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Quote:
Originally Posted by SeaCompiler View Post
There is a really nice post from Apex about how to tell the diff between the weak and strong ones. You looking for this?
No, I was just wondering if that's what you were referring to, is all
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Old 01-28-2016, 11:20 PM   #5
SeaCompiler
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Yes. One of the main reasons I posted this is because of the Apex article and because of my experience today. There is definitely a difference between how the weak one versus strong one performs. I am also curious for others to chime in if they had to get a re-tune or not because I have seen others where they just swapped them and could tell enough of a difference in the butt dyno yet had no issues. I didn't really make that clear in my post. Mine must be really weak to yield such a difference in engine behavior.
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