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Some one PA-LEEZZZ help!

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Old Jun 7, 2025 | 10:28 AM
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Default Some one PA-LEEZZZ help!

Don’t know what happened or why but I am getting mad circuit codes and I changed the solenoids and such. No one with the same direct issue and idk where to go next. I’m fixing pieces which seem to lead to grounding, possible battery issue, possible alternator issue, broken PCM, just a bunch of stuff but nothing that tells me what will
fix these problems… but what I do feel like is certain it’s some sort of electrical issue?? Only because I changed the parts that it threw codes for but the problems didn’t fix.

not modified aside from now has coil overs. It’s a 2003 anniversary edition with the suspension option. The 4 corners have the 10ohm resistors to allow 80+ driving BUT I now can’t go over 80 with the issues I’m now having but it does not throw a code for the suspension!

help
-Big Wes (or Swaggz if you’re local to DE)

oh and by the way it’s not just codes sitting, when I do reset everything I get into 3rd gear and it no longer down shifts so I’m in 3rd gear unless I clear codes and reset. Yes even when I let the car sit over night. I’m always in 3rd. I’ll post live data as well in a bit


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Old Jun 7, 2025 | 10:58 AM
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What parts were changed ??...the FIRST step is to get your battery load tested...if good you go from there...if parts were from Amazon or Ebay you may be building in more problems.
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Old Jun 7, 2025 | 11:19 AM
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Originally Posted by C5 Diag
What parts were changed ??...the FIRST step is to get your battery load tested...if good you go from there...if parts were from Amazon or Ebay you may be building in more problems.

nah straight from advanced auto, all solenoids changed
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Old Jun 7, 2025 | 11:40 AM
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usually when the problems start after you have added non-OE parts, you have added the problem.
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Old Jun 7, 2025 | 11:43 AM
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Originally Posted by wcongo14
nah straight from advanced auto, all solenoids changed
Just FYI…trouble codes aren’t part numbers…get battery checked and make sure it’s fully charged…erase all codes and see what comes back the next few startups…most of these codes are “2 trip” DTC’s.
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Old Jun 7, 2025 | 03:01 PM
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Originally Posted by C5 Diag
Just FYI…trouble codes aren’t part numbers…get battery checked and make sure it’s fully charged…erase all codes and see what comes back the next few startups…most of these codes are “2 trip” DTC’s.

well yea I know that… what lead me to change everything was when researching the codes it of course said those parts were bad. But sitting in front of store battery and starter and alternator are all good. Also already did the multi trip idea and that’s what lead me to the forum to ask for help lol
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Old Jun 7, 2025 | 04:02 PM
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Looking at some wiring diagrams the MAF, EVAP Purge, EVAP Vent, and both Secondary Air codes may be related to Ignition Relay 42 or even the ignition switch...if you have a DVOM and know how to use it I'd hook one lead up to battery Positive and the other lead to the Pink wire which is the 12 volt feed...do you know how to back probe a connector...if so back probe the Pink wire while the engine is running and note the voltage drop from battery positive through the ignition switch and Ignition Relay 42...you should only see 0.2 to 0.3 on the DVOM...if more than 0.5 you have a big voltage drop either on the ignition switch and/or relay.
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Old Jun 7, 2025 | 04:02 PM
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