Gen 7 surging idle
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Junior Member
Joined: Aug 2004
Posts: 43
Likes: 0
From: Norwalk, CT
Car: 88 IROC-Z/05 Silverado ECSB
Engine: 408 LSX
Transmission: 700-R4 reverse pattern/manual valve
Axle/Gears: 9"/4.11
Gen 7 surging idle
installed Gen 7 and runs but idle surges badly. Have tried idle
speed adjustments but nothing seems to help. happens more
in hot weather-any suggestions?
speed adjustments but nothing seems to help. happens more
in hot weather-any suggestions?
Member
Joined: Dec 2001
Posts: 161
Likes: 0
From: Michigan
Car: GTP
Engine: L67
Check your VE, Spark, and A:F tables in their idle regions to be sure they are relatively "smooth". No major changes from cell to cell that could cause the engine to oscillate if it were to hover between cells of differing values. If it happens more at hot temps, look harder at your VE table, and your warmup enrichment -- VE Corretion vs. ECT value.
Junior Member
Joined: Jan 2003
Posts: 66
Likes: 0
From: Long Island, N.Y.
Car: 90 IROC-Z
Engine: 383 Miniram
Transmission: 700R4
I'm still very new to tuning the Gen VII, but I found my idle much more stable at 14.7 A/F ratio compared to a leaner idle. The leaner than this I went, the worse the idle got. Mine would surge the worst after rapid deceleration back to an idle.
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eightsixseven
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Dec 16, 2024 01:50 PM
