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Can I get the main relay wiring diagram?

Tiny
DLUDER
  • MEMBER
  • 2000 HONDA PRELUDE
  • 2.2L
  • 4 CYL
  • 2WD
  • MANUAL
  • 200,000 MILES
H23a 11.5 comp pro1 cams tuned on Hondata.
I had it tuned perfectly, but it started getting lean at times and bucking at cruise. I replaced the entire fuel system, sensors, a lot of wiring, ECU, hondata, distributor, checked tune multiple times, re-tuned, had professional check tune. I think something is causing interference or back-feed to ECU but no Check Engine Light. However, it'll get a solid Check Engine Light with chrome chipped ECU. I'm lost and I need help. Relay wiring diagram would help.
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Saturday, August 13th, 2022 AT 10:12 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,603 POSTS
Does the car have any codes? This guide will help you run them also, recheck all engine and body grounds. Here is a guide and the engine with main relay wiring diagrams for your 2000 Honda Prelude in the images below. This guide can help you test the connections.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.
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Sunday, August 14th, 2022 AT 5:03 PM

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