Question about Cars & Trucks
Trouble codes 18 and 23 can a bad knock sensor which is trouble code 23 causes troble code 18 to come up
My book does not show a code 18 problem but it refers to knock sensor fault front as high voltage . Replace the knock sensor
knock sensor are used to tell the CPU to alter the fuel air ratio and the ignition timing to suit rpm's and load . If it is out then the code 18 may be the result .
Posted on Jan 03, 2014
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Posted on Jan 02, 2017
SOURCE: knock sensor code, p0330
The knock sensors either work or they don't. When they do not, the light comes on. All that a knock senor is is a piezo crystal that vibrates at the frequency that is comparable to engine "knock", and sends that yes/no signal to the ECU. There are 2 knock sensors, and both are bolted to each side of the engine interior walls, under each cylinder head. You have to remove both of the intake manifolds to access the knock sensors and their wiring.
Price to pay? My flat rate book suggests 3.7 hrs to change both. 3.7 hrs times your local labour rate, plus the price of the 2 sensors and/or wiring, and the price for the gaskets for the upper & lower manifolds. Depending on your location, you could quickly spend over $500.00.
Posted on Oct 07, 2008
It could be a dirty air filter a, spark plug, spark plug wires.
a leak in the air intake system or the mass air flow sensor
Posted on Mar 12, 2010
SOURCE: 2005 Toyota Camry - knock sensor
Your sensor went off because it overknocked.
Try using a different type of fuel with a higher octane.
Erase the code and use the better gas. if it comes back then we will worry about replacing it.
Posted on Apr 14, 2010
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