Question about 1995 Jaguar XJ6

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Starting problems at times

You say check ECU, how do I do that, Jags are new to me?

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The ECU is the computer that, among other things controls electronic fuel injection on your jaguar (great cars).
To test the ecu you need equipment that is not normally for sale for home repairers.
You need to go to a garage, they will connect a flow meter to your engine and computer machine to your electronic board.
Here is something about ECU testing, just for general knowledge information.

Here you can buy replacement ECU, ECM and ECC and check spare price, just in case.

Posted on Jul 17, 2008

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I inherited a 1998 ford escort that ran when my uncle had it but never since I got it I put a new ecu in it does it need to be reprogrammed for that car.


There are MANY factors that will make a car fail to run, the least of which is the ECU. The ECU is plug & play, IF it is the CORRECT ECU! It is VERY rare for the ECU to fail unless the car has been improperly jump-started or has been immersed in water (which will cause even more problems).

Put the original ECU back into the car and check the following:
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Hi,
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When you get this kind of problems, you always start replacing plugs, and eventually air filter and fuel filter if they are dirty.
Once you exclude this simple causes, usually is either an injectors problem, or an ECU problem.
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YOu cannot test or fix the ECU at home, it must be connected to a machine that controls computer and check fuel flow at the same time, you need to do this in a garage.
Start doing the simple things, and eventually go to a mechanic if problem keeps going.

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This could come from your ECU, your gas line or who knows what. There are so many parts in jags its almost impossible to find the exact problem, which is why the **** at Jag have to decided to completely replace things instead of trying to fix them. Good Luck.

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