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The spark I'm seeing on my datalogs doesn't match what's in the tables. Knock retard and coolant compenation check out, it's some problem with the main table. If I set the whole table to 25* I will see that in the datalog but it's wrong with anything higher. Ideas?
__________________ Increasingly I find the difference between a 'fact' and opinion is the number of people that believe it.
3.4 block converted to roller valvetrain with 220/225 cam on 115 lsa, early '769' heads with 3500 valves, LS6 springs & mild porting, worked over heddman headers, 3500 plenum with ported 3400 lower & 'short star' 65mm throttle. 210hp at 5800ft (that's 270hp at sealevel )
I'm having trouble understanding in detail what your problem is, but I think I'm having a similar problem.
My ignition timing starts going up if I maintain throttle position and stay in a gear. It starts at what is called out on the base map, then goes up from there. If I 0 the values in the highway spark table the problem goes away, but why should that matter? My highway spark mode should not enabled under 55mph and this happens below that.
__________________
86 IROC, Superram 383, TKO 600, C4 IRS
89 GTA, L98, A4. T56 swap pending
91 TA LB9/T5 (R.I.P)
Take a look at the spark on the datalog and what I have
in my tables, they don't match.
__________________ Increasingly I find the difference between a 'fact' and opinion is the number of people that believe it.
3.4 block converted to roller valvetrain with 220/225 cam on 115 lsa, early '769' heads with 3500 valves, LS6 springs & mild porting, worked over heddman headers, 3500 plenum with ported 3400 lower & 'short star' 65mm throttle. 210hp at 5800ft (that's 270hp at sealevel )
Ok, another clue. Apparently it's only reading from the end of the spark table. It only follows rpm, no LV8 adjustment.
__________________ Increasingly I find the difference between a 'fact' and opinion is the number of people that believe it.
3.4 block converted to roller valvetrain with 220/225 cam on 115 lsa, early '769' heads with 3500 valves, LS6 springs & mild porting, worked over heddman headers, 3500 plenum with ported 3400 lower & 'short star' 65mm throttle. 210hp at 5800ft (that's 270hp at sealevel )
Ok, another clue. Apparently it's only reading from the end of the spark table. It only follows rpm, no LV8 adjustment.
The code will do this on a maybe cold and/or maybe a hot start. I don't remember what does what in this area. Look over these parameters and what they do:
Code:
;--------------------------------------------------
; HOT RESTART SPARK
;--------------------------------------------------
LC029: FCB 113 ; IF COOL > 56c, (129F) DISABLE HOT RESTART
LC02A: FCB 1 ; HOT RETARD,
LC02B: FCB 113 ; IF COOL >= 45C< (113f) DISABLE HOT Restart SPARK
;--------------------------------------------------
;--------------------------------------------------
; DISABLE COLD SPARK
;-----------------------------------------------
LC02C: FCB 255 ; IF COOL FN START > 151C, (304F)
;-----------------------------------------------
__________________ Increasingly I find the difference between a 'fact' and opinion is the number of people that believe it.
3.4 block converted to roller valvetrain with 220/225 cam on 115 lsa, early '769' heads with 3500 valves, LS6 springs & mild porting, worked over heddman headers, 3500 plenum with ported 3400 lower & 'short star' 65mm throttle. 210hp at 5800ft (that's 270hp at sealevel )
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