2003 Honda Civic Si Q&A
2003 Honda Civic Si Question: 03 civic si cel code p1298 and p0172 bay1 system rich
ok my car has following v2 intake dc header hks exhaust STOCK CAT and o2 sensors bc cams duel springs apexi neo afc for fuel control to not run lean with cams. kpro will be here next wk. ok i get those codes it killed my battery i replaced bat n it still throws these codes. dyno says im not running rich or lean however code says yes, yesterday exhaust felt loader n a lil more vibration under my seat area i dont think eld is bad i dont. what can anyone help me with i think my cat is goin bad it has 107k on it and with increased exhaust flow due to cam upgrade i think its backing up n over heating causing the rich code. this causing the eld code thus alt over charging etc. sounds good right lol? what does sparky think? the car had valve adjustment r runs smooth n dynoed optimal not rich. also with the exhaust feeling loader etc the car felt a lil held back and thats when my cel came back on with said codes after i changed battery clearing the codes plz help ty. erik - 03civicsi
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