Found 19 PDF associated with tag : Camshaft sensor symptoms
A drawing of the FICM (Fuel Injection Control Module) subsystem is shown in Figure 1. The FICM drives the fuel injector solenoids based on fuel and timing commands (via *CAN2 link) from the PCM. It uses engine speed and position signals (*CKPO, *CMPO) to determine when the injectors need to be activated. The ignition switch provides *KEYPWR to the FICM. Once this signal is detected by the FICM, the *MPR output of the FICM will engage the FICM relay. This in turn provides the *FICM PWR and *FICM Logic PWR voltages to the FICM. The FICM provides a feedback signal to the PCM indicating when the FICM is providing control signals to the injector (fueling) (via CAN2 link and *FICMM signal). The FICM will cycle through the injector outputs when the key is placed in the ON position. This is called pre-cycle and the time of pre-cycle varies with engine temperature. The pre-cycle is done as a self test of the injector circuits.
B-9 The end of this camshaft sensor is a permanent magnet. This material provides general directions for collision damage repair using tested, effective procedures. Following them will help assure the reliability of the repair. I-CAR cannot accept responsibility for any individual repair, nor can it warrant to the quality of such repair. Anyone who departs from the instructions in this program must first establish that neither personal safety nor the integrity of the repair of the vehicle is compromised by the choice of methods, tools, or supplies. I-CAR does not endorse or recommend any brands or makes of vehicles, repair equipment and supplies or other products. The appearance of various makes and brand names in any I-CAR material is purely coincidental and is based on the availability of those products at the time of production. All recommendations presented in this program are based upon research programs or upon tests conducted by laboratories, manufacturers, or selected collision repair facilities. If performed as outlined, these recommendations will provide the basis for a thorough, professional repair
The Smart Car Fault Insertion programme bridges theory and simulation with diagnostic troubleshooting on a real Car. The programme can be connected to any suitable Car and the courseware customized to meet specific requirements - faults inserted via a PC. The courseware is available in 3 versions: Training - the courses are based on the NVQ Technical Certificate (Diagnostic Units) and the faults are inserted randomly via the PC Assessment - faults are inserted via the PC and the learner uses his or her diagnostic skills to identify and remove the fault Customised - the instructor decides which fault is inserted and can create lessons and flow charts around a particular area Car Fault Insertion programme allows the learner to apply their knowledge of vehicle sub-systems to diagnose faults, inserted via the courseware, to correlate symptoms with actual faults. The courses can be delivered in standalone mode or tracked using the Internet-based CLEMS (Computerized Learning and Evaluation Management System) which allows the
As input signals to the Powertrain Control Module (PCM) change, the PCM adjusts its response to the output devices. For example, the PCM must calculate different injector pulse width and ignition timing for idle than it does for wide open throttle (WOT). The PCM will operate in two different modes: Open Loop and Closed Loop. During Open Loop modes, the PCM receives input signals and responds only according to preset PCM programming. Input from the oxygen (O2S) sensors is not monitored during Open Loop modes. During Closed Loop modes, the PCM will monitor the oxygen (O2S) sensors input. This input indicates to the PCM whether or not the calculated injector pulse width results in the ideal air-fuel ratio. This ratio is 14.7 parts air-to-1 part fuel. By monitoring the exhaust oxygen content through the O2S sensor, the PCM can fine tune the injector pulse width. This is done to achieve optimum fuel economy combined with low emission engine performance.
960 uses a Motronic 1.8 diagnostic system, which uses a single Electronic Control Unit (ECU) to control fuel injection and ignition systems. In addition, Motronic 1.8 diagnostic system determines whether A/C compressor may be switched on, reduces engine torque in response to a signal from automatic transmission, and controls radiator fan. Diagnostic unit for retrieving codes is located in engine compartment, in front of left strut assembly. Diagnostic unit is equipped with an LED indicator, activation button and function select cable. See Fig. 1. Diagnostic unit output socket No. 2 is used to retrieve all codes. Once selector cable has been inserted in correct slot, depressing button once, twice or 3 times selects from one of 3 control (fault tracing) functions. Faults stored in ECU memory are read by observing LED flashes. Diagnostic system stores 18 fault codes. All fault codes contain 3 digits (example: 4-1-3). Since codes have 3 digits, each code requires 3 series of flashes. A 3second interval separates series of flashes. See Fig. 2.
This page outlines the basic procedure for retrieving malfunction codes from the PCME (Powertrain Control Module - Engine) on your 1993 through 1995 Ford Probe GT. Other Mazda MECS-II (Mazda Engine Control System - II) equipped vehicles like the 1.8L V6 Mazda MX3 can also use the general procedure outlined below though some of the code descriptions may not be exactly applicable to the vehicle. If possible, always consult a service manual before attempting to pull codes from your car and by all means, DO NOT simply start shorting wires together at random to get codes to flash as damage may occur to the car. I cannot be held responsible for any damage resulting to any vehicle from using the directions given on this page. This stuff works as is on my car, a 1994 Probe GT and should be okay on yours. Don’t take my word for it. If you have AUTOMATIC TRANSAXLE, AIRBAG or ANTI-LOCK BRAKE SYSTEM codes, click HERE to see how to read them (this page deals only with 2.5L engine codes.)
P0251 (Fuel metering valve (IMV) control error) Symptoms: * Extremely poor engine performance - glow plug warning lamp flashes. * Engine cuts out - glow plug warning lamp flashes. * Engine will not start. Cause: * The fuel rail pressure demanded by the system cannot be achieved without the IMV opening beyond the tolerance specified for that pressure. • NOTE:The fault descriptions listed below should be worked through in order. 1. Restriction in the low-pressure fuel system, which could be caused by a blockage of a fuel line or the fuel filter, or a damaged fuel line. 2. Air in the low-pressure system: Check using transparent hoses or remote feed the fuel injection pump with a filtered proprietary fuel supply to eliminate the vehicle low-pressure fuel system entirely. Leaking fuel lines or connections can cause air in fuel.
All Subaru vehicles manufactured since 1996 are equipped with a second generation on-board diagnostic system (OBD II), as required by government regulations. The emissions warranty for many of these vehicles has ended, and some are finding their way to independent repair shops for emissions system repairs. While the implementation of the OBD II standards was intended to bring a level of standardization to emissions diagnostics and repairs, vehicle manufacturers and individual vehicles will continue to have unique design characteristics and repair techniques. This article offers a collection of repair tips and tricks collected from the field, focused on late model Subaru emissions system diagnosis, service and repair
It’s short for Camshaft Position Sensor. Ford calls it a Synchronizer or CMP sensor. International calls it a CAMP sensor. Since a diesel doesn’t have an ignition system so to speak, it needs a way to verify that the motor is turning. It does this by counting revolutions of the camshaft, and relaying that info back to the computer that all is well, keeps dumping in fuel! When the CPS goes bad, the computer thinks there is a problem and basically shuts the truck off. It could be intermittent (runs fine at cruise, but wont idle) or it could be absolute. (Truck just died! no reason!) There is no timeline, no precursor, no warning. You could go 100k miles, or 10k miles between failures. Failure Symptoms: One sign of a failed CPS is your Tachometer will not move while cranking the engine over. This is on long extended cranking. Short cranking, on a good CPS will not register either. If you have an AIC (APCM) installed, it may not registered RPM's either. The Tachometer gets its reference from the CPS sensor and if it’s not sending a signal, no tachomete