Question about Volvo S70
WHY IT IS USING I
DIFFERENCE BETWEEN THIS WHEEL AND SINGLE TOOTH PHASE SENSOR WHEEL
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
The ECM detects that the engine has started, but did not received a CMP sensor pulse during the first engine revolution.
The ECM detects that the engine is running, but does not receive a CMP sensor pulse for 800 of 1,000 engine cycles.
The 4X camshaft position (CMP) sensor circuits consist of an engine control module (ECM) supplied 5-volt reference circuit, low reference circuit, and an output signal circuit. The CMP sensor is an internally magnetic biased digital output integrated circuit sensing device. The sensor detects magnetic flux changes of the teeth and slots of a 4-tooth reluctor wheel attached to the camshaft. As each reluctor wheel tooth rotates past the CMP sensor, the resulting change in the magnetic field is used by the sensor electronics to produce a digital output pulse. The sensor returns a digital ON/OFF DC voltage pulse of varying frequency, with 4 varying width output pulses per camshaft revolution that represent an image of the camshaft reluctor wheel. The frequency of the CMP sensor output depends on the velocity of the camshaft. The ECM decodes the narrow and wide tooth pattern to identify camshaft position. This information is then used to determine the optimum ignition and injection points of the engine. The ECM also uses CMP sensor output information to determine the camshaft relative position to the crankshaft, to control camshaft phasing, and for limp-home operation.
You need a cam sensor or have wiring problem !
Apr 30, 2015 | Cars & Trucks
May 08, 2014 | 2004 Dodge Ram 1500
Jun 02, 2011 | 2003 GMC Envoy
May 12, 2011 | 2002 Oldsmobile Bravada
Apr 25, 2011 | Chevrolet S 10 Cars & Trucks
Mar 16, 2011 | BMW X5 Series Cars & Trucks
Dec 12, 2010 | 1998 Ford Windstar
Aug 03, 2010 | 1997 Lincoln Continental
Mar 12, 2010 | 1991 Chevrolet Corvette
69 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: