Po325 code - 1999 Chevrolet Express

po325 knock sensor curcuit malfunction. call any auto parts store for the location on your vehicle motor size etc.

THROTTLE POSITION SENSOR, MISFIRE, #4 MISFIRE, KNOCK SENSOR, THESE ARE YOUR TROUBLE CODES, PO120,PO300, PO304, PO325, RESPECTIVELY, REPLACE THE TPS @ THROTTLE BODY, REPLACE KNOCK SENSOR , @ ENGINE BLOCK, REPLACE YOUR SPARK PLUGS & PLUG WIRES ! AND YOU MUST ALSO REPLACE BOTH YOUR AIR & FUEL FILTERS, DISTRIBUTOR CAP & ROTOR , INSPECT, MAY NEED TO REPLACE, I WOULD ANYWAY !!!!!!!! ADD SOME GOOD FUEL INJECTOR CLEANER TO TANK, NEXT FUEL UP !

Determine what the code descriptions of errors are. Then check and replace as needed.
Airbag light indicates problem with airbag system. You must visit the dealer to have analyzed and diagnoses given. Do not attemp to fix yourself. The airbag system, can cause severe injury or death.

P0325 NISSAN - Knock Sensor Circuit Malfunction
Possible causes- Faulty knock sensor
- Knock sensor circuit short to ground
- Knock sensor circuit short to power
- Knock sensor circuit open
- Faulty Engine Control Module (ECM)

Read more: http://engine-codes.com/p0325_nissan.html#ixzz29K4BM3th

po300 is multiple cylinder misfire and po325 is the knock sensor

po325 knock sensor 1 malfunction po340 camshaft position sensor malfunction po605 internal control modular (rom) read only memory error check the wiring to the computer for proper connection and damage the computer (pcm) may be damaged or its program erased this happens sometimes when the connector is unplugged and the battery is hooked up the other two can be related (pcm) failure or could be a wiring problem po325 check knock sensor wiring and sensor and same for po340 crank sensor wiring and sensor good luck

PO117 - Engine Coolant Temperature Circuit Low Input
PO325 - Knock Sensor 1 Circuit Malfunction (Bank 1 or Single Sensor)

Do you have a coolant leak?

CODE PO325 - KNOCK SENSOR. CODE PO335 -CRANK SHAFT POSITION SENSOR. CODE PO336 - I DID NOT SEE CODE PO336.

The po340 is a cam sensor code ,po325 is a crank sensor code>THE crank if it goes bad will through both codes,and also the car will not start.You will have no spark or injector pulse.So have your crank sensor checked:)

the PO 325 code is for VSS vichicle speed sensor and PO500 is for a knock sensor,so you will need to see what the new code is to be able to help you, the engine power manegment is controled by both get it scanned by autozone or the mechanic that did the work and see if it's the same code, if it is you may have a short or an ecm going bad. let us know what codes you find.