Tech 1 data advice needed on these settings
Firstly 89 vette, zz4 cam and after market chip(Brian Harris) attached to ARAP prom
Do I need to remove the after market piggy back chip prior to adjusting settings then refitting?
These are the current readings and I have pulled....also fuel consumption excessive.
Some I relise are incorrect,like the tps, blm etc so need correct settings and how using the tech these are adjusted?
So far:
Engine warm and idling in park
Spark advance 18
idle 780
oxy sensor 200-680 mv
inj pulse 2.0-2.11 mv (bosch 111 injectors)
TPS 0.60 (LV8 56-58) ( 0.58 with ignition on only)
mAF 8.8
AIRFLOW 8.
BLM 123-130..(integrator) block learn 121
(BLM ignition on only.128 fuel integartor block learn 128 rsi)
open loop BLM block learn cell..8 cell rsi
Ignition on only.
Iac 160
Battery 11.2 v
fuel pump volts 0.0
mat/int air temp 108f
spark advance -4
inj pulse 1.9msec
closed lp block learn cell 0
Last edited by Qiken; Aug 12, 2011 at 04:21 AM. Reason: info
BLM is irrelevant except when engine is in closed loop.
You really need the reading from when car is being driven to determine what is happening with fueling
FWIW
I ran the ZZ4 cam with a stock ARAP tune for many years.
It wasn't until I started data logging I found that I had knock counts ( nothing was audible ) going through 3K WOT that was pulling timing out
All I did was reduce the timing in that area ( ARAP has very aggressive timing ) and the knock counts went away.
Last edited by rodj; Aug 12, 2011 at 11:09 PM.






