2000 Toyota Tundra 4.7 Engine Code P0171

Discussion Starter 1 May 27 2010.

2000 toyota tundra 4.7 engine code p0171. 2007 Tundra 57 4x4 115000 miles. So your cars CEL always check Engine Light is on and also you had the codes scanned at a local parts shop. Most auto repair shops charge between 75 and 150 per hour.

They had in hand fuel fouled spark plugs and no explanation as to why. My 2000 has the same code. The brake booster is vacuum assisted and works off of engine vacuum.

Additional unmeasured air allows the engine to lean out. While watching the fuel trims on your scanner engine fully. I arrived to a 2000 Toyota Tundra 34 running rough with a P0171 that was cleared by the shop.

I have a 2001 Toyota tundra 4wd SR5 8 cyl 47L gas FI Truck with 11700 miles. A P0171 means that your Toyota is having trouble with a dirty or faulty mass air flow MAF sensor or a vacuum leak downstream of the MAF sensor but this code can also signify a bad O2 sensor in the exhaust on bank 1the one closest to the engine on bank 1 Also P0171 code can be tripped by a plugged fuel injector by a dirty fuel filter causing low fuel pressure or even an exhaust leak before the. After 3 years of trying to get the light off to get it inspected i took it in and said fix it.

2000 Toyota Tundra 34 P0171. Your car or truck has either a P0171 P0174 lean fault code or both stored in the. Get back in the truckdrive it for 20 minutes CEL.

I connected my scan tool and observed the fuel control and feedback PIDs. Reconnect any disconnected vacuum lines and replace any damaged vacuum lines that are leaking then use FIXD to clear check engine light code P0171. P0171 TOYOTA code tech notes If the P0171 is combined with the P0174 code its very likely that the problem is caused by an intake leak.