LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Porsche
>>
1978
>>
930
>>
Repair and Diagnosis
>>
Engine Performance
>>
Emissions
>>
EGR Function Testing - PORSCHE
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
EGR Function Testing - PORSCHE
Expand All (for easy ctrl-f)
Collapse All
EGR Function Testing - PORSCHE
Test 1
1975 914 (Throttle Controlled EGR Valve)
Test 2
1976-79 Carrera, 911S, 911SC, 912E & 914 (Ported EGR Valve)
Test 3
1977-79 924 & 928 (Ported EGR System)