Mazda 6 Service Manual: No.19 exhaust smoke

No.18 cooling system concerns-runs cold

No.20 fuel odor (in engine compartment)

Other materials:

Mazda 6 Service Manual: Intake air temperature (iat) sensor inspection
Resistance Inspection Note Perform the following inspection only when directed. 1. Disconnect MAF/IAT sensor. 2. Measure the resistance between the MAF/IAT sensor terminals D and E using an ohmmeter. If not as specified, replace the MAF/IAT sensor. If the MAF/IAT sensor is okay, but ...

Mazda 6 Service Manual: Cylinder head gasket
CYLINDER HEAD GASKET REPLACEMENT Warning Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel ...