P0171 2007 Toyota Camry -

Question

PO171 and P0101 ,I replaced the mass air sensor, the crank sensor and the C02 bank 2 sensor. My car will start, but after I drive the car it will not start for about 20-30 minutes.

Answer 1

P0101 MAF circuit range / perfromance problem

P0171 Fuel trim system lean Bank 1

Low fuel pressure can be one of the causes for the no start up. and this can cause a lean code condition with a mass air flow performance code.

 When it comes to the MAF sensor from the MAF to the throtttle body there should be no false air leak in the air duct tube,

 Here is a MAF air duct that was  tape up. to cover a leak, This vehicle suffered a P0171 and a P0101, with a acceleration problem, making sure the MAF is proper with no false air leak  will allow you to rule out the MAF as the problem with the no start condition,  For the no start condition fuel pressure test should be made.