1998 Honda Civic Repair Question
Honda Civic Body Problem
[P0505] The scan tool indicates Diagnostic Trouble Code (DTC) P0505: Idle control system malfunction.
NOTE: If DTC P1508 or P1509 is stored at the same time as DTC P0505, troubleshoot DTC P1508 or P1509 first, then recheck for DTC P0505.
IAC valve mechanical malfunction
Throttle body clogged port, improper adjustment
Intake manifold gasket leakage
Intake air hose loose leakage
ECT sensor incorrect output
The only code i have is the p0505
ok, that is the chart for the 505. it could come down to an idle air control, clogged passage or bad pcm
How do i find out which one it is??
follow the chart. it is not a simple repair. you need to follow the chart as we do when we do a diag to get to the real failure. code numbers never identify bad parts just failed systems
I found out it was the ideal air control valve. it wasnt opening like it should.