1996 Cadillac DeVille Q&A
1996 Cadillac DeVille Question: PO101
DESCRIBE BEST WAY TO REPAIR WILL IT HURT ENGINE TO RUN WITHOUT REPAIR - Visitor
any code, no matter what it is, will have long range effects on the engine. get a real diag from a real shop from a real tech and get there reccomendations. Roy - mastertech6371
The definition of P0101 is "Mass Air Flow" sensor reading is inconsistant with "Throttle Position Sensor" reading. This means that the computer cannot regulate the engine properly because it's getting inconsistant data from the sensors. It's possible that there's not anything wrong electrically but there could be an air leak into the intake system, but more likely it's an electronic problem relating to the MAF or TPS. Not fixing these things will usuallly lead to further problems later (dirty oil, engine wear, failing inspection) and will cause the engine to use more fuel and emit more exhaust pollutants. the best way to repair this code is to check the input and output of the MAF and the TPS and find outr what's really wrong. MAF problems ore not uncommon on these cars, in my experience. I'm suspicious that there are more codes than P0101, would be good to know. - Superbob
PO101 code MAF circuit range/performance
I Have Three Code PO101 ,PO410 & PO742 I replace EGR , and Secouary intake Fuel pump I still get the above cods
Engine shakes, running on 7 . Not 8. Codes reading po446. Po101. Do you think I need front coil ignition ?