I'm maxxed out. WTF
#31
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Originally Posted by Rob W.
Since the method of calibration is different, I'm not sure you can make a direct comparison between the free-air type of cals used on most sensors and the factory cal'ing done on the AEM. However, according to my manual, the spec on the sensor is: 80,000km nominal on unleaded fuel, accuracy of +-0.7%. (I assume that's a percentage of Lambda, not AFR)
#32
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Originally Posted by Rob W.
The idea that your tuner saw this fuel pump problem and just maxed your fuel tables out without telling you about it is a real joke. WTF!? I mean, forget about all the advanced timing vs. lean AFR debates.. not telling you was simply irresponsible!
He continued to perform the tune and not tell me my fuel pump was bad because he wanted my money.
#33
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Originally Posted by JeffR116
Yes it was very irresponsible of Al. He stated to me that he could not add anymore fuel because he was lacking a parameter in his map definitions when he had tuned more than enough IXs to know that it was a fuel issue and not the map.
He continued to perform the tune and not tell me my fuel pump was bad because he wanted my money.
He continued to perform the tune and not tell me my fuel pump was bad because he wanted my money.
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Fuel pump may only be part of the problem and your wideband may be dead on. If the pickup screens are dirty / clogged that will cause it to run leaner, I got .5 afr richer after changeing the pickup screens (one on the walbro and one in the other side of the tank on the end of the fuel pickup).
Could also have a bad FPR. Check your Fuel pressure at idel and at idle with the vacume line pulled off the FPR.
Could also have a bad FPR. Check your Fuel pressure at idel and at idle with the vacume line pulled off the FPR.
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Originally Posted by mad_VIII
Fuel pump may only be part of the problem and your wideband may be dead on. If the pickup screens are dirty / clogged that will cause it to run leaner, I got .5 afr richer after changeing the pickup screens (one on the walbro and one in the other side of the tank on the end of the fuel pickup).
Could also have a bad FPR. Check your Fuel pressure at idel and at idle with the vacume line pulled off the FPR.
Could also have a bad FPR. Check your Fuel pressure at idel and at idle with the vacume line pulled off the FPR.
My Fuel pump pickup screen was as clean as could be, but I'll check the other one as well, just to eliminate the possible errors.
#37
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About 4 months old. The sensor was also out of the exhaust for a week while I was in the process of switching exhausts. If it got wet during that period, it would totally kill the sensor.
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