Question about Volkswagen Cars & Trucks
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: golf gt tdi starting problem
believe it or not but i have seen a intermittant brake light switch cause that.
if you have a scanner monitor IAT ECT FUEL temp,when cold not running they should be with in 5 degrees from one another
Posted on Nov 30, 2008
you most likely have a bad key switch cylinder assembly. you can try to spray wd40 solvent into the switch before you have the switch replaced,but sometimes it's a switch replacement that repairs the problem. have you inspected your ignition key to look for damage to the key itself? try a spare key to make sure it's the key,and not the key switch. you can also try turning the key while turning the steering wheel at the same time to get the key to work.sometimes the switch locks when parked in a bind,such as on a hill,or against a curb and so on. try this 1st before you have the ignition switch replaced. AAA auto club,if you're a member covers part of the replacement costs for a replacement switch also. you may have coverage through a cell phone also.one more thing to try, if you have a tilt steering column,try to reposition the steering wheel to see if you can get the key to turn. remember never force it enough to break your key off into the switch! thank you for choosing fixya.com!
Posted on May 13, 2011
SOURCE: I have a 2000 TDI
SOUND LIKE GLOW PLUGS NOT WORKING DUE TO FAULTY FAULTY COOLANT TEMPERATURE SENSOR OR BLOWED GLOW PLUG FUSE OR BAD RELAY.HAVE VECHICLE CODE SCANNED TO CHECK TO MAKE SURE PRE HEATING SYSTEM WORKING CORRECTLY.CODE SCANNING WILL GIVE YOU A FAULT CODE IF YOU HAVE BAD GLOW PLUG RELAY.
Posted on Jun 27, 2011
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SOURCE: Hi I've got a golf
In your case the turbocharger is responsible for engine losing power.
The car goes in "limp home" mode!!!
After scanning the EDC engine control module with a VAS, VAG-Com or KTS -BOSCH diagnosis tool you will find this: Fault code: P1557 - Charge pressure control. Value above upper control limit static, (Turbo Boost pressure control exceeded).
1. Engine stopped and ignition switched off. Check all pneumatic connections and hoses between turbocharger actuator = pressure unit for boost-pressure control, boost-pressure control solenoid valve, vacuum reservoir, EGR control solenoid valve, intake-manifold flap solenoid valve, EGR valve with throttle - part of intake manifold. Also the vacuum connection between tandem pump and brake booster. If you find something wrong replace parts. If not go to step 2.
2. Extract the hose of the turbocharger actuator = pressure unit for boost-pressure control part of turbocharger. Instead of the original hose you must place another 1 meter long hose with the same inside diameter, and then you check to inspire yourself the air from the other one extremity of this hose. The mechanical connecting rod of the turbocharger actuator must have a smooth and whole motion. If you can do that with your mouth, then you must replace the boost-pressure control solenoid valve. If you can not reach this with your mouth, then you go to step 3.
3. This is the most difficult work. The problem is that the soot particles deposits inside the turbocharger plugging the variable nozzle geometry mechanism = adjustable vanes of the turbine. If the turbocharger actuator is not able to adjusts the turbine vanes, the charge air pressure increase too much and ECM (Engine Control Module) goes in "limp mode" = engine protection software. As a result the "limp home" mode engine still runnings until you turn the engine off (ignition switch off) and back on, when the "limp mode" is deactivated, but the fault still remain in ECM memory!
4. You must be able to extract the turbo from the engine and then to disassemble the turbocharger, clean inside adjustable vanes mechanism and refit all.
Posted on Jul 10, 2011
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