A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

B5 INJECTION RELAY

Old 09-21-2018, 07:15 PM
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Default B5 INJECTION RELAY

Hi Guys ! I have a A4 B5 98 , The car doesn't start and trying to look for the failure it seems that the injectors are not working .Testing the cable that goes in the engine to turn them on doesn't have energy .
Can anybody tell me where the Injectors relay is ?
Can't seem to find them.
Thanks .
Old 09-22-2018, 06:45 AM
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Originally Posted by mrjeepeto
Hi Guys ! I have a A4 B5 98 , The car doesn't start and trying to look for the failure it seems that the injectors are not working .Testing the cable that goes in the engine to turn them on doesn't have energy .
Can anybody tell me where the Injectors relay is ?
Can't seem to find them.
Thanks .
They all hook up to the ECU I believe. You can check for blown fuses/relays. There are a whole bunch of heavy duty fuses/relays under the driver dash.
https://fusesdiagram.com/audi/fuses-...udi-a4-b5.html
A good video on testing relays:

Could be the ECU itself or another issue causing the ECU not to power the injectors. VCDS scan would really be helpful.
Old 09-22-2018, 07:09 AM
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Great Panzer !!! I'll try that out , thanks a lot
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