LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Infiniti
>>
1998
>>
Q45 Base
>>
Repair and Diagnosis
>>
Engine Performance
>>
Testing & Diagnosis
>>
Engine Controls - Basic Testing
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Engine Controls - Basic Testing
Expand All (for easy ctrl-f)
Collapse All
Introduction
Preliminary Inspection & Adjustments
Visual Inspection
Retrieve & Record Codes
Mechanical Inspection
Notes
Compression (I30)
Compression (Q45)
Exhaust System Backpressure
Fuel System
Fuel Pressure
Notes
Relieving Fuel Pressure
Checking Fuel Pressure
Ignition Checks
DISTRIBUTORLESS Ignition System Checks
Notes
Ignition Coil Power Source
Ground Circuit
Output Signal Circuit
ECCS Relay (I30 & Q45)
Ignition Coil Resistance
Camshaft Position (CMP) Sensor
Crankshaft Position (CKP) Sensor
Idle Speed & Ignition Timing
Idle Speed
Summary