'94 530im Fails Emissions Test
OK, the old 5er just failed the Texas State Emissions Test. Car has 140k mi. on it, and has been very carefully maintained according to prescribed schedules. No codes thrown in a while and the most recent one was for an O2 sensor, so I put in two new ones from BMA about a year ago.
Here is the data from the test:
HC (PPM) 228 max allowed 112 FAIL
CO (%) 0.49 max allowed 0.62 PASS
CO2 (%) 14.5
O2 (%) 0.6
Nox (ppm) 1156 max allowed 829 FAIL
Dilution 14.99 need >6 PASS
Question is, what to do next? Seems like I am way out of range on Hydrocarbons, so is trying another testing facility worth the $40 ? Is there any way to do some troubleshooting on my own ? Car doesn't have OBDII, so there were no other data available. Or, do I just need to go to the local indy and have them diagnose ?
TIA
Robert Callaway
Dallas, TX
'94 530im 143k mi
'94 Land Cruiser FZJ-80 202k mi.
"If I could have back all the time and money I ever spent on cars.......I'd spend it all on cars."