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Section 2 (EGR Function Testing - General Motors Cars)
Section 2 (EGR Function Testing - General Motors Cars)
WARNING:
This page is about a different variant/trim than selected.
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EGR Function Testing - General Motors Cars
Test 1
Ported EGR Valve
Test 2
Negative Backpressure EGR Valve
Test 3
Positive Backpressure EGR Valve
Test 4
1983-84 Pulse-Width Modulated EGR Valve
Test 5
1985 Pulse-Width Modulated EGR Valve
Test 6
1986 Pulse-Width Modulated EGR Valve
Test 7
1987 Pulse-Width Modulated EGR Valve
Test 8
1988 Pulse-Width Modulated EGR Valve
Test 9
Notes
1988-1992 3.1L, 3.4L & 3.8L (Digital EGR Valve)
Test 10
1990-91 - 2.3L "W" Body VIN D (Digital EGR Valve)
Test 11
1988 2.8L "W" Body (Integrated Electronic EGR Valve)
Test 12
Integrated Electronic EGR Valve
Test 13
4.5L
4.6L
Test 14
3.1L, 3.4L & 3.8L (Digital EGR Valve)
Test 15
Linear EGR Valve
Test 16
Metro
Test 17