CEL 9 on OBD0
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Joined: Jul 2006
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From: Federal Way, WA, USA
CEL 9 on OBD0
Having some problems, car is a 91 Integra, OBD0 JDM B16 Swap. Code came up randomly after 6-7 months after swap, code has been there for 8 months.
Car warms up, then after a minute at operating temp it throws a code 9, CYP sensor, followed the troubleshooting flow chart in the haynes manual, cyp sensor checks out at 500ohms, wiring is fine to the ECU, and last step says check for ground on pin B10, it shows ground so it says check for short in wiring. Wires are fine, if you unplug the ecu, the ground doesn't show in the wiring anymore.
So I figured bad ECU, But I replaced it and problem is still there.
Any other ideas? I am trying to find another Dizzy in case that might be the problem still, even though it checked out.
Car warms up, then after a minute at operating temp it throws a code 9, CYP sensor, followed the troubleshooting flow chart in the haynes manual, cyp sensor checks out at 500ohms, wiring is fine to the ECU, and last step says check for ground on pin B10, it shows ground so it says check for short in wiring. Wires are fine, if you unplug the ecu, the ground doesn't show in the wiring anymore.
So I figured bad ECU, But I replaced it and problem is still there.
Any other ideas? I am trying to find another Dizzy in case that might be the problem still, even though it checked out.
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axhandler
Honda Civic / Del Sol (1992 - 2000)
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Jun 18, 2003 08:33 AM
