audi a4 2 tdi ignition
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Filed Under (Honda) by admin on 03-01-2011
Spark Check for spark at secondary coil wire and each spark plug wire using a spark tester. If spark is not present, continue with following tests. Check spark plug wire resistance on suspect wires. Resistance should be less than 25,000 ohms. Ignition Coil Power Source 1. On Civic, remove distributor cap to check power source directly at coil. On all models, disconnect ignition coil primary leads. Turn ignition on. Using voltmeter, check voltage between ground and Black/Yellow wire terminal of ignition coil harness. 2. Battery voltage should be present. If battery voltage is not present, check for open in Black/Yellow wire between coil and ignition switch. Ignitor Power Source Turn ignition off. Disconnect harness connector at distributor. Turn ignition on. Using voltmeter, check for battery voltage between ground and Black/Yellow wire of harness. If voltage is not present, check for open in Black/Yellow wire between ignition coil and harness connector. If wire is okay, check ignition coil resistance (for internal short to ground). Ignitor Check Check TDC/CRANK/CYL sensor resistance values. See TACH PULSE SIGNAL . Check power sources. If no problems are found and spark is not present, replace ignitor. Ignition Coil Resistance (Accord & Prelude) 1. Remove primary and secondary leads from ignition coil. Using an ohmmeter, check resistance between primary terminals “A” and “C” (“A” and “B” for Prelude) of ignition coil. See Fig. 2 . Resistance should be .6-.8 ohm at room temperature. 2. On Accord, check resistance between terminals “B” and “D” of ignition coil (tachometer circuit). Resistance should be about 2090-2310 ohms at room temperature. 3. On all models, check secondary resistance between terminal “A” and secondary output terminal (coil tower). See IGNITION COIL RESISTANCE table. Check for continuity between terminals “A” and “B” (“A” and “C” for Prelude). Continuity should exist. If readings are not within specification, replace coil.
Filed Under (Audi) by admin on 25-09-2009
Audi has more models and engine choices than that Baskin Robbins has ice cream colours and flavours. There’s also the fact that one-quarter of Audi’s range is diesel and even here there’s a choice of five engines ranging from a 1.9-litre sipper to a 4.2-litre stonker. So it’s odd that Audi introduces a 2.7-litre engine to separate its 2-litre and 3-litre diesels. Why bother? Because it’s not just about the size.
Drivetrain and economy
The 2.7 is Audi’s latest turbo-diesel. Like the 3-litre, it’s a V6 but adds low-friction engine components and low-drag steering and oil pumps. Audi claims fuel savings of up to 15 per cent and rates the 2.7-litre turbo-diesel in the A6 at 6.4 litres/100km — pretty good for a big saloon even though this city-bound test recorded a more modest 8.2 l/100km.
Filed Under (Audi) by admin on 15-09-2009
Check the following wire connection for open circuit according to wiring diagram:Relay carrier in E-box, plenum chamber, position 3Terminal Harness connector atignition coils Terminal 8 1 Specified value: Wire resistance max 1.5 – If necessary, repair wire connection. Audi A4 Sedan 2002-2004, Audi A4 Avant 2002-2004, Audi A4 Cabriolet 2003-2004 – 1.8 Liter 4-Cyl. 5V Turbo Generic Scan Tool, Engi…Page 5 24-158 If no malfunctions are found in wires: – Check voltage supply of Motronic Engine Control Module (ECM) voltage supply relay – J271 – Page 24-158 . – Check activation of Motronic Engine Control
Module (ECM) voltage supply relay – J271 – Page 24-159 . Checking voltage supply If specified value is not obtained:
- Connect multimeter for voltage measurement as follows. Relay carrier in E-box, plenum chamber, position 3
Filed Under (Honda) by admin on 23-04-2010
Ignition Coil Test (Accord 2.3L & CR-V) 1. Turn ignition off. Remove distributor cap, rotor and leak cover. Remove primary leads from ignition coil. Using an ohmmeter, check primary resistance between ignition coil terminals “A+” and “B-”. See Fig. 12 . Resistance should be as specified. See IGNITION COIL RESISTANCE table. 2. Check secondary resistance between ignition coil terminal “A+” and secondary output terminal (ignition coil tower). See IGNITION COIL RESISTANCE table. If readings are not as specified, replace ignition coil.Ignition Control Module (ICM) Input Test (Accord 2.3L) 1. Turn ignition off. Remove distributor cap, rotor and leak cover. Disconnect wires from ICM. See Fig. 14 or Fig. 15 . Turn ignition on. Check for voltage between body ground and ICM Black/Yellow wire. If battery voltage exists, go to next step. If battery voltage does not exist, check for open in Black/Yellow wire between ignition switch and ICM. See WIRING DIAGRAMS article.
Filed Under (Ford) by admin on 05-11-2010
IGNITION KEY DIFFICULT OR UNABLE TO BE TURNED OR REMOVED – KEY-IN-IGNITION WARNING CHIME SOUNDING WITH KEY REMOVED Some 2000-2005 Focus vehicles may exhibit ignition key related issues including difficulty or an inability to turn the key, an inability to remove the key, or (2005 only) the key-in-ignition warning chime continuing to sound even when the key is removed. ACTION Based on the vehicle’s symptom, refer to the appropriate Service Procedure. SERVICE PROCEDURE UNABLE TO REMOVE IGNITION KEY 1. Check if the inability to remove the key is the result of normal operation of the key removal inhibit circuit: In automatic transmission equipped vehicles, the key removal inhibit solenoid (within the ignition switch assembly) is energized when the gear selector is moved out of the park position, and prevents the ignition key from being removed. If the gear selector is in any position other than park when the key is rotated or turned off, the key removal inhibit circuit will not release the key (key cannot be removed). To remove the key, the gear selector must first be placed in the park position, then the ignition must be cycled to run and back to lock. This is normal, do not replace the ignition lock cylinder if it is operating as described. 2. Refer to Workshop Manual, Section 307-05 and follow diagnostics for the “shift interlock system”. The shift interlock system includes the key removal inhibit circuit, which may be causing the concern. If the shift interlock system is operating correctly, replace the ignition lock cylinder. Refer to Workshop Manual, Section 501-14, “Ignition Lock Cylinder Functional” removal and installation procedure. DIFFICULT OR UNABLE TO TURN IGNITION KEY