LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Audi
>>
1990
>>
100 Base, Automatic
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Controls - Tests W/O Codes
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Engine Controls - Tests W/O Codes
Expand All (for easy ctrl-f)
Collapse All
Introduction
Symptoms
Symptom Diagnosis
Will Not Start (Cranks Okay)
Spark
No Spark
Difficult Start (Cranks Okay)
Engine Surges
Rough Or Unstable Idle
Excessive Fast Idle
Engine Stalls
Engine Has Lack Of Power
Engine Misfires Or Hesitates
AFTERBURN In Exhaust System
Poor Fuel Mileage
Detonation Or Knocking
Fails Emission Test
INTERMITTENTS
Intermittent Problem Diagnosis
Test Procedures
Intermittent Simulation