- copying this here to keep EGR info together for the sake of search results.
It basically tests the O2 integrator offset during a steady load cruise condition once above 45 MPH.
Here are the calibration qualifiers for the EGR test on my truck:
Quote:
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; ERR 32 >> EGR <<
;---------------------------------------------
LD52B FCB 30 ; 30 SEC DIAG CYCLE TIME ENABLED IF IN MAP WINDOW
LD52C FCB 80 ; 40 Kpa LO LOAD DISABLE
LD52D FCB 208; 87 Kpa HI LOAD DISABLE
LD52E FCB 17 ; 6.6% LO TPS LIMIT (ENABLED IF IN TPS WINDOW)
LD52F FCB 64 ; 25% HI TPS LIMIT (ENABLED IF IN TPS WINDOW)
LD530 FCB 250; 98% EGR ON THRESHOLD
LD531 FCB 25 ; 2.5 SECs EGR ERR DELAY TIMER
LD532 FCB 3 ; 3 COUNTS FAIL COUNT THRESHOLD
LD533 FCB 10 ; 3.9% TPS, CHANGE TO DISABLE TEST
LD534 FCB 28 ; 2.8 Secs TEST DURATION
LD535 FCB 4 ; 4 COUNTS, INTEGRATOR DIFF FOR EGR OK
LD536 FCB 45 ; 45 MPH REQUEST TO ENABLE TEST
LD537 FCB 255; 99.6% EGR D.C, DECREMENT FOR TEST IN WORK (454cid TYPICALLY 50%)
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