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C R A N K _ F U E L _ P U L S E W I D T H _ V S _ E C T

( 65534, 0.00199893 ) ( 70, 0.00569924 )

( 180, 0.00199893 )

( 150, 0.0023003 )

( 40, 0.010502 )( 20, 0.0141489 )

( 0, 0.0218891 )( -20, 0.0387617 )

( -65536, 0.0387617 )

Format: (ECT in degrees F, injector pulsewidth in seconds). Notice how dramatic the pulsewidth

changes as the ECT changes. For example, on the A9L series a 10.5 ms pulsewidth at 40F changes to a 2.3ms pulsewidth at 150F. This may be a critical adjustment for larger-then-stock injectors and

easy starting.

C L O S E D _ T H R O T T L E _ S P A R K _ A D D E R , P A R T _ T H R O T T L E _ S P A R K _ A D D E R ,

W O T _ S P A R K _ A D D E R

-

G L O B A L _ S P A R K _ A D D E R

xxxSPARK_ADDERs can be positive to add timing, or negative to remove timing.

T I P _ I N _ R E T A R D A p o s i t i v e n u m b e r p u l l s o u t t h a t n u m b e r o f d e g r e e s r i g h t a f t e r a s h i f t negative number here might, presumably, advance ignition after a shift. Probably a dangerous thing! . A

C H E C K S U M _ B A S E _ A D D R E S S - T h i s i s t h e s t a r t i n g a d d r e s s u s e d t o c a l c u l a t e checksum on the ROM. The checksum test processes blocks of code until it reaches a base address that is 0. Set this value to 0 to remove KOEO error code 15 (checksum test error). The ROM checksum is valid only on the stock calibration—Once you change anything, the checksum is invalid and error code 15 is generated. a

It is not known if the presence of error code 15 effects PCM operation—such as not storing keep- alive memory.

O P E N _ L O O P _ I D L E _ M U L T I P L I E R 1 # ( Z A 0 s e r i This variable modifies the fuel mixture at idle when the vehicle is in OL mode (during cold start). A lower value richens the mixture. You might use this if you run a radical cam and the car won’t idle smoothly until it gets warm e s )

INTAKE_VOLUME

5.5

  • #

    Intake Manifold Volume

You should play with this a bit. It is a non-critical measurement. People tell me it has an effect on throttle response. The GT40 has a larger volume—try a value of 6. I don’t know what the units are.

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