Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161208-101695-1loypisjs:136:3912)
    at m.mountComponent (/tmp/execjs20161208-101695-1loypisjs:47:15602)
    at /tmp/execjs20161208-101695-1loypisjs:49:31860
    at a.r.perform (/tmp/execjs20161208-101695-1loypisjs:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161208-101695-1loypisjs:49:31821)
    at r (/tmp/execjs20161208-101695-1loypisjs:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161208-101695-1loypisjs:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161208-101695-1loypisjs:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161208-101695-1loypisjs:173:8), <anonymous>:17:3)
    at /tmp/execjs20161208-101695-1loypisjs:173:8

Q: My truck is giving codes P0171 & P0174

asked by on

Last week my check engine light came on. I have a Harbor Freight OBD 2 code reader and got the codes P0102/P0171/P0174 on the reader. P0102 was the M.A.F. sensor and was replaced.Erased the codes and test drove approx 30 miles and C.E.L. came back on.Rechecked the codes and P0102 is gone. P0171 & 174(lean bank 1 & 2) keep coming up. Smoke test performed with plenum on & no vacuum leaks. Removed plenum and duct taped glove to throttle body and cut a finger off a glove to place over the hose from valve cover to plenum. Rechecked with some - no leaks. Cold started engine and sprayed carb spray to see if rpm's would rise. Nothing. Visual inspection found nothing as well. Fuel pressure check revealed 35psi with key on,engine not running. With engine running 35-38psi. After turning engine off - approx 20-25 minutes for gauge to drop to zero. Fuel pump or fuel pressure regulator.?I don;t have a live data OBD tool to check fuel trims. Also hard to start after short drive. Have to use starter spray to start and runs fine.

My car has 88900 miles.
My car has an automatic transmission.

A: Hi there. If the engine is running lean, th...

Hi there. If the engine is running lean, then there could be a plugged fuel filter or a faulty fuel pump with loss of pressure. If the pressure is dropping after 20 to 25 minutes, then there could be a problem with the fuel pump check valve. When the pressure is at 0, having a pressure gauge on the fuel rail, check for the pressure to increase as the fuel pump is turned on when the key is turned on.

If the pressure takes some time before it stops, then the check valve in the pump is sticking open. This means the fuel pump should be replaced. If the fuel pressure is measured very quickly, then replace the fuel pressure regulator on the fuel rail. If you need further assistance troubleshooting your vehicle, then seek out a certified technician, such as one from YourMechanic, who can come to your location to determine why the engine is running at a lean condition and suggest the necessary repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: van has alot of play in steering and it seems to drift to the right

If you have excessive play in the steering then you should have the complete front end checked. You may have worn steering components like tie rod joints and steering joints and mounts. The drift can be from these worn parts...

Q: Error code P0171 and P0174

The high positive long term fuel trim suggests a vacuum leak and/or inadequate fuel delivery. But there are other causes that have to be evaluated as well: bad oxygen sensor(s); dirty MAF sensor; stuck open EGR valve; weak fuel pump;...

Q: If the fuel pressure regulator needs to be replaced can you use one from any vehicle

Hello there, the fuel pressure regulator on your 2000 Mazda Protege is a critical part in the fuel system. The fuel pressure regulator manages the fuel pressure at the fuel rail and ensures the proper constant pressure. You will not...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...