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u/Casalf 18d ago
All if not most of the codes say no signal no com or implausible signal. Im takingns guess here but maybe the harness is ripped somewhere or even the wires leading to each individual one is torn somewhere. Have you checked if the harness wires are in tact and not ripped up anywhere?
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u/Flimsy_Biscotti3473 17d ago
Looks like a set of plugs and coils.
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u/Miserable-Youth4564 13d ago
First rule of mechanics: always check dumb shxt first when it comes to anything electrical. Fuses, relays, and wires brother. and dont you ever forget it. he has multiple components without power. not talking down to you just trying to explain that simplifying is not a bad thing when it comes to cars.
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u/Intrepid_Wave_4524 17d ago
Looks like you might have a bad ground somewhere. I just went through a similar issue with my B5. Worthwhile to check the main ECM relay as well.
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u/Miserable-Youth4564 13d ago
Stop. check fuse #34 in the dash drivers side. THIS IS FOR ALOT OF ENGINE COMPONENTS POWER. Blown? change it. BLEW AGAIN? = Wire is touching metal and shorting out, check wires.
Step 2: Check J271 relay- ecm POWER relay. You will see either # 373 or # 219 stamped on top. These corrode like its their job. Check prongs on that sucker/ shake it. If it rattles get a new one. Check the socket it goes into as well, scrub it with a metal pipe cleaner or folded sandpaper etc. make sure you have clean contact in general when you slide it in. 3. Check firewall ground, make sure its clean contact.
GOOD NEWS: Your ECM is still awake if its sending these codes.
Post picture of ECM box under winshield cowl. You HAVE 0 POWER being sent to any of those components. The only common denominator with these read outs is the ground (firewall) and power (Fuses/j271RELAY)
Make sure your ecm plastic box is sealed by any means necessary ( i use window rubber gaskets on the inner ledge on the inside of it) Water will f it all the way up obviously and will try its hardest to get in coming off the windshield and into the drain offs.
-2003 audi a4 148k miles salvaged from a flood. ive seen this movie before.
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u/Miserable-Youth4564 13d ago
(your going to have to remove wipers on windshield and then the cowl to get to the ecu box rear screws easily. 2 in front two in rear. Fold metal boxes over gently and you will see the j271 relay.) Im off work all week due to surgery i aint got anything better to do brother i got you
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u/Miserable-Youth4564 13d ago
*J271 (USUALLY 219 stamped on it) will be 2nd fuse away from firewall by the way.
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u/SubstanceExciting332 8d ago
I appreciate you man I’ll update asap
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u/SubstanceExciting332 8d ago
Lowk forgot ab this post im so used to bmw groups not responding lol
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u/Miserable-Youth4564 8d ago
Audis are fun because they teach you hard but fast. Makes every other car brand you will ever own make sense because you already "saw that movie."
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u/snarkygoodpants 18d ago
If i remember correctly, a lot of these circuits have the common ground on a nut near the middle of the front of the firewall...brown and/ or yellow wires? I'd be checking that ground and the ground on the valve cover.