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Vw 1900 diesel engine

How do I bypass the ecu on 1900 diesel vw engine?

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  • gapcap Oct 26, 2008

    Becuse fitting a 1.9.diesel engine (with ecu)into a Mk 1 caddy which obviously hasnt had ecu! !so need to get id of ecu somehow! I know its possible but just dont know how!!

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You carnt,and why do you want to ??

Posted on Oct 25, 2008

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I ha to changed this module Volkswagen passat 1998 so I need programming my problem is how programming for my car


Hi Samuel, The encoding is carried out with the use of diagnostic scanner equipment capable of that action. Regards John

Jun 22, 2014 | Cars & Trucks

1 Answer

2006 VW Jetta code U0100


This problem is with ecu / ecm= engine control computer. These are a common and horrible problem on vw's, particularly on tdi's. The signs in a tdi are when car dash lights come on, but no glow plug light,trans gear lights flash, but car still tries to crank. And hopefully ecu has enough power to out out code u0100= no communication with ecu. Unfortunately the ecu will need to be replacd. The ecu is located under the hood, near and under the wipers. Used ecu with same codes run $50-200. New $1000. If get used one make sure has a return policy. codes must match production quarterly year.

Apr 14, 2013 | 2006 Volkswagen Jetta

1 Answer

P0320 Ignition/Distributor Engine Speed Input Circuit Malfunction


Its not picking up the engine speed which i think on this vehicle it reads from the ECU ,so i do feel for this sort of fault you will need the dealer diagnostic software for this and maybe even a new ECU ,best advice clear the fault light and take it to a garage and trade it in quick ,Maybe even a nice VW diesel with 70 MPG or dare i mention it a citreon or a skoda diesel manual gearbox then this sort of fault wouldnt bother a manual gearbox as your in control

Mar 21, 2012 | 2005 Kia Sedona EX

1 Answer

I have a 2000 Jetta diesel. Can you tell me where the plug for the block heater is? If indeed there is one.


In addition to the 4 primary glow plugs, the cooling system also has 3 Coolant Glow Plugs to help provide extra heat to the cooling system in order to warm-up the vehicle's interior more quickly, and enhance overall engine warm-up time. (Example - Some Mercedes diesel engines use electrical heaters in the cabin because their engine is so thermally efficient.)
Likewise, this auxiliary source of heat from the 3 Coolant Glow Plugs is necessary because of the VW 1.9 TDI engines outstanding efficiency, which wastes very little heat.


The 3 Auxiliary Coolant Glow Plugs are located at the end of the aluminum cylinder head (in a protruding flange) directly below the vacuum (brake booster) pump, which also connects to a coolant hose.

tdisline_180.jpg


The 3 Auxiliary Coolant Glow Plugs use two (underhood) relays which are monitored and controlled by the ECU. During a cold start, the vehicle's interior temperature selector switch helps the ECU choose one of three modes depending on the amount of heat required to warm-up the coolant.

For example, Coolant Glow Plug #1 can be selected to operate all by itself, or #2 and #3 can operate together as a two-some, or lastly, all three glow plugs can form a triple source of heat for maximum enhancement of engine warm-up time.

After the engine is completely warmed up and the thermostat is open, the Coolant Glow Plugs normally shut-off and remain off unless the (thermally efficent) engine cools down sufficiently to have the computer signal them to come back on to keep the engine and cabin air warm. Extensive idling times at stop lights or in the driveway are scenarios where these glow plugs are most likely to recycle on and off.

In conclusion, the period of Preglow and Afterglow is determined by the engine's coolant temperature (during a cold or hot start), which helps the ECU select a predetermined time-cycle for the combustion chamber and / or Auxiliary Coolant Glow Plugs to follow.

Finally, one myth that needs to be immediately debunked, is the belief that the TDI's advanced Glow Plug System is linked to the opening of the driver's side door, which is false! It is also noteworthy to mention that some earlier VW diesel glow plug systems were operated in this manner, but not so with the advanced VW Jetta 1.9 TDI engine.




Please do rate my response. Thanks!

Jan 23, 2011 | 2000 Volkswagen Jetta TDI

1 Answer

Where are the three glow plugs that are used for the heater/cooling located on an 02 vw jetta 1.9L tdi?


In addition to the 4 primary glow plugs, the cooling system also has 3 Coolant Glow Plugs to help provide extra heat to the cooling system in order to warm-up the vehicle's interior more quickly, and enhance overall engine warm-up time. (Example - Some Mercedes diesel engines use electrical heaters in the cabin because their engine is so thermally efficient.)
Likewise, this auxiliary source of heat from the 3 Coolant Glow Plugs is necessary because of the VW 1.9 TDI engines outstanding efficiency, which wastes very little heat.


The 3 Auxiliary Coolant Glow Plugs are located at the end of the aluminum cylinder head (in a protruding flange) directly below the vacuum (brake booster) pump, which also connects to a coolant hose.

tdisline_102.jpg
The 3 Auxiliary Coolant Glow Plugs use two (underhood) relays which are monitored and controlled by the ECU. During a cold start, the vehicle's interior temperature selector switch helps the ECU choose one of three modes depending on the amount of heat required to warm-up the coolant.

For example, Coolant Glow Plug #1 can be selected to operate all by itself, or #2 and #3 can operate together as a two-some, or lastly, all three glow plugs can form a triple source of heat for maximum enhancement of engine warm-up time.

After the engine is completely warmed up and the thermostat is open, the Coolant Glow Plugs normally shut-off and remain off unless the (thermally efficent) engine cools down sufficiently to have the computer signal them to come back on to keep the engine and cabin air warm. Extensive idling times at stop lights or in the driveway are scenarios where these glow plugs are most likely to recycle on and off.

In conclusion, the period of Preglow and Afterglow is determined by the engine's coolant temperature (during a cold or hot start), which helps the ECU select a predetermined time-cycle for the combustion chamber and / or Auxiliary Coolant Glow Plugs to follow.

Finally, one myth that needs to be immediately debunked, is the belief that the TDI's advanced Glow Plug System is linked to the opening of the driver's side door, which is false! It is also noteworthy to mention that some earlier VW diesel glow plug systems were operated in this manner, but not so with the advanced VW Jetta 1.9 TDI engine.

Dec 16, 2010 | 2002 Volkswagen Jetta TDI

1 Answer

1993 vw cabriolet no spark runs every now and then put new coil just out of thought suspecting bad ecu


Ther are many components that could cause this. I had a similar problen on a 1993 MK1 scirroco, and a friend of mine pointed to the anti stall unit, a small block on the baulkhead (firewall) with 2 electrical connectors, 1 male and 1 female. This can be bypassed by simply disconnecting these connectors and plugging them together, thus bypassing the contol unit. I did check with a VW specialist before trying and he confirmed that this is safe to do.
As for the ECU this needs to be checked by a specialist, but some can be "reset" by disconnecting the battery, nleaving for an hour and reconnecting the battery. The engine will run quite rough until the ECU "learns" again. But this will depend on the type of ECU fitted to your car.

Jul 10, 2010 | 1993 Volkswagen Cabriolet

1 Answer

My 1995 VW Golf 3 VR6 engine refuse raise to the maximum when reved.


Thats because the car ecu is program to do that if you want to bypass that , you will need to buy a computer chip and install it ..it will let the car rev to red and give you max speed i belive its max is 160 mph.

Oct 16, 2009 | 1995 Volkswagen Golf

2 Answers

Vw bora 1900 diesel dti


Hi

The first thing you should do is have the MAF sensor checked out because the symptoms you describe are that of a faulty MAF.

Very best regards

Geordie

Jun 18, 2008 | 1999 Volkswagen GTI

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