alvinaudi
09-14-2008, 08:32 AM
I did auto scan with my 02 A4 2.0(NO T) with 17545-fuel trim: Bank 1 (ADD): System too rich
P1137-002-Lower Limit Exceeded-Mil On! I did read Block 32 and the reading is -5.8% and -0.5%. I knew the first reading is a bit low but I think somewhere between -9% to +9% is "Normal". I also read the MAP data which is also with normal range (around 3.5~ 4). Both O2 sensors are OK...What I needed to do in order to improve the -5.8% to a "better value"? It this the the cause of the fault, what else did I needed to look for...? Thanks for all of your valuable inputs. (PS I just fixed the leaking hose from the valve cover as well as the return one from the crankcase with a new breather valve.)My friend with the same model which he still have those leaky hoses like me before but he still didn't fix any of those problem, and I ran a scan on his car, same fault found, but this time is too lean for him! I really don't know why?? Hoped that some brother will help me with these...Thanks so much.
P1137-002-Lower Limit Exceeded-Mil On! I did read Block 32 and the reading is -5.8% and -0.5%. I knew the first reading is a bit low but I think somewhere between -9% to +9% is "Normal". I also read the MAP data which is also with normal range (around 3.5~ 4). Both O2 sensors are OK...What I needed to do in order to improve the -5.8% to a "better value"? It this the the cause of the fault, what else did I needed to look for...? Thanks for all of your valuable inputs. (PS I just fixed the leaking hose from the valve cover as well as the return one from the crankcase with a new breather valve.)My friend with the same model which he still have those leaky hoses like me before but he still didn't fix any of those problem, and I ran a scan on his car, same fault found, but this time is too lean for him! I really don't know why?? Hoped that some brother will help me with these...Thanks so much.