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Subject Before checking ohms on injectors since removing the >>
     
Posted by ZUL8TR on September 10, 2008 at 12:07 PM
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In Reply To Possible Fuel Injectors?? posted by DizzieLizzie on September 10, 2008 at 10:08 AM
     
Message connectors is a PITA start the engine and use a long screw driver or wood dowl rod and place the tip on the injector cap and listen for the ticking. If no ticking there are 3 possibilities 1) dead injector, 2) bad wire connection between the injector connector and the ECU, or 3) (1) + (2).

If you find injectors with no tick pull off those connectors and check the Ohms at the injector pins. Acceptable is 10 - 14 kOhms. Injectors will run if outside this range but will not work if you get Ohms so large that they do not register on the meter i.e open circuit = infinite Ohms.

Use a digital meter.

If dead injectors you need to replace them. Best to replace all 6 since the working ones will probably soon follow. Your TT uses the old style injectors that are subject to failure and it has been speculated that ethenol fuel is a culprit.

I just replaced all 6 of mine (1 failed and 1 out of spec somewhat) with the new style for NA. It is not a 5 minute job since it involves pulling the plenum. If you have a shop do it it can get complecated and expensive since they need to know about the fuel rail issues with new style injectors into the old style lower manifold.

Research before going ahead so you do not get bit.

ZUL8TR in Orlando,FL

     
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