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2003 Mazda Miata 1.8L Poor Idle Quality, MIL Lamp on
Posted to Asian Driveability on 7/18/2007 3 Replies

Codes p0507 idle air control system RPM higher than expected and p0850 park nutral input circuit and it stays on high idle. Continuity test on orange and violet/red wire to ECU from IAC is fine. 10.7 ohms on valve. Are you seeing thease valves going bad? Any o...

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  Related Documents & Media  2003 Mazda Miata

 
Message Closed w/Summary

car Vehicle Data

2003 Mazda Miata

VIN JM1NB353X3
Engine1.8 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI / FI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursAlways

Trouble Codes

P0505Idle Speed Control System
P0507Idle Speed Control System Higher Than Expected
Message Closed w/Summary

car Vehicle Data

2003 Mazda Miata

VIN JM1NB353X3
Engine1.8 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI / FI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursAlways

Trouble Codes

P0505Idle Speed Control System
P0507Idle Speed Control System Higher Than Expected