Question about 2001 Toyota Highlander
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Posted on Jan 02, 2017
SOURCE: two codes p0400 and p0325
could be leak around throttlebody gasket or lose hose or cracked. take carb cleaner and spray around the throttle body to intake manifold and see if the engine variates in idle. if so you have a leak.
Posted on Apr 23, 2009
SOURCE: knock sensor replacement
Turn ignition off. Disconnect knock sensor 3
pin harness connector. Locate knock sensor, on cyli
On Optima 2.7L engine, sensors are located on both
sides of cylinder block. . Remove knock
sensor from cylinder block. To install, reverse rem
Posted on Mar 19, 2010
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Knock Sensor Circuit Malfunction
What does that mean?
A knock sensor tells the engine computer when one or more of your engine's cylinders are "knocking", that is, exploding the air/fuel mixture in a way that delivers less power and can be damaging to the engine if prolonged. The computer uses this information to tune the engine so that it doesn't knock. If your knock sensor wasn't operating properly, so that it was always indicating a knock, the engine computer's response may have been to change the ignition timing on your engine. Knock sensors generally bolt into or thread into the engine block. This P0325 code may show up intermittently or the Service Engine light may be lit constantly. Other knock sensor related DTC codes include P0330.
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You may notice drivability problems including a lack of power and perhaps some hesitation. There may also be other symptoms.
A code P0325 most likely means one or more of the following has happened:
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