Monitor Strategy

Total OBD & ECU Auto Diagnostics

TOAD Auto Software

Get Instant Access

Related DTCs

P0300: Multiple cylinder misfire P0301: Cylinder 1 misfire P0302: Cylinder 2 misfire P0303: Cylinder 3 misfire P0304: Cylinder 4 misfire

Required Sensors/Components (Main)

Crankshaft position sensor and Camshaft position sensor

Required Sensors/Components (Related)

Engine coolant temperature and intake air temperature sensors and Mass air flow meter

Frequency of Operation



1,000 to 4,000 crankshaft revolutions: Emission related misfire 200 to 600 crankshaft revolutions: Catalyst damaged misfire

MIL Operation

2 driving cycles: Emission related misfire

MIL flashes immediately: Catalyst damaged misfire

Sequence of Operation




Monitor runs whenever following DTCs not present

P0100 - P0103 (MAF meter)

P0110 - P0113 (IAT sensor)

P0115 - P0118 (ECT sensor)

P0120 - P0223, P2135 (TP sensor)

P0125 (Insufficient ECT for Closed Loop)

P0327, P0328 (Knock sensor)

P0335 (CKP sensor)

P0340 (CMP sensor)

P0500 (VSS)

Battery voltage

8 V or more

VVT system

Not operated by scan tool

Engine RPM

400 to 6,400 rpm

Either of following conditions (a) or (b) met


(a) ECT at engine start

More than -7°C (19°F)

(b) ECT

More than 20°C (68°F)

Fuel cut


Was this article helpful?

0 0
Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook

Post a comment