New here to forum so thanks. Working on bin ecm prom chip with tunerpro rt. Idle and start up good. acceleration falls off at 2500-3000 rpm. Just looking for tips to tune mid range and wot. Comp cam xr288hr with stealth ram, efi, 42lb injectors. Any suggestions or links are appreciated. thanks

 

You might want to state your mask your working with.
why such large injectors?
To do wot you need a wideband .

 

will find mask , thanks, i have a 383 with 11.15 to 1 compression and holley stealth ram. Ordered 42lb injectors from advice from other buiders with this stroker engine. Might have to change them if tuning doesnt work. Ordering wide band equipment next week. thanks again

 

Tpi masks are $1f for 85, $32 for 86, $32b for 87-88 and $6e for 89.
85 uses a 1226870 ecm 86-89 uses a 1227165 ecm.
90-92 speed density uses a 1227730 ecm and $8d mask.

 

thanks, 89 model $6e mask with 1227165 ecm. Seems to run ok in park or neutral. When i put it in Drive it will idle and run up to 70mph. The problem is I cannot push accelerator Pedal down more than 1/16th of an inch.
If l just press pedal normal ... engine immediately Stalls. I have burner and can alter bin just don't know where. If it's the injectors (recommended) I will replace them with smaller set. Drinking gas. Had one chip leaned out in MAF tables 5 and 6. Changed PE tables from 21lbs to 42lbs to match injectors. No change. Any Help on this is appreciated.

 

Let’s start with the basics. Choose a 6E bin and change your injectors to 42 lbs in both double and single fire constants

42 lb inj are fine they are not the issue unless they are bad injectors

set desired idle speed to 900-1000 warm 1100-1150 cold coolant

PE mode spark advance adders make them all 0, and go into your main spark table and add those values in there

for idle areas of 800-1000 rpm and 60-80 lv8 roughly, i would put in 25-28 deg.

Take maf table 1 and 2 scalars up one value, or multiple the actual table values by like 3-5%.

Disable closed loop by setting coolant temp enable really high in the constants

try starting and idle it. Does it start and run? Does it stay running? Get a wideband o2, this helps tremendously to tell where you are for fuel


whats probably going on in your current situation is any moderate throttle its going lean. Above 3000, maf table will start to approach maxing out. PE enrichment vs rpm tale now comes into play. You will need alot of adder here most likely depending on which bin you started with. Wideband o2 comes in handy here. Only so much you can do with narrow band

 

thanks...on it

 

Ok, used a good 6E bin and changed my injectors to 42 lbs in both double and single fire constants.
Changed PE mode spark advance adders to 0, and adjusted at main spark table .
Changed idle areas of 800-1000 rpm and 60-80 lv8 in 25-28 deg areas.
Changed maf table 1 and 2 scalars up one value, was in the area of 3-5%.
Raised temp settings to disable closed loop in constants.
Started but no idle... surging while holding throttle position slightly open
Died when i let off gas. The wideband sensor is installed at exhaust but still needs gauge wired... maybe next weekend.
I have a 6e chip that will idle but no excelleration but cannot copy off it or read it. Using moates burn2.
any suggestions appreciated.
attached is a pic of spark table, looks like timing is way advanced

 

If the wideband is not running yet try pulling a spark plug and seeing if its wet with fuel.

starting and dying with out throttle open kinda sounds lean, but could also be slightly rich. First gotta verify tps is proper volts closed and iac counts are in the teens at idle. You may to do a iac reset and open the throttle blades more to maintain idle

but fuel verification could help here. If its lean you can mess with the maf tables some or also try the open loop afr change vs coolant temps. Or also the open loop afr vs lv8. Both of those can help. Esp cold starts where motor needs to be richer to run well before getting up to temp. Maf tables i would adjust at operating temp

 

I cant see the timing in your pic but mainly dont want to see more than 34 deg or so at high rpms above 3200 at lv8 of 192-208 ish. Thats wot. Cruise between 80-170 lv8 can be mid high 30’s generally. Lower values at lower rpm.
Light lv8 stuff may get closer to 40 deg.

arap is very aggressive looking i usually knock that down after adding pe mode advance

 

As far as your $6e chip you can’t read, have you tried reading as a 27c128 ?
It could be another chip moates burn 2 is not capable of reading. I had this occur awhile back and had to use my pocket programmer to do a read.
Your pic is to small to read

 

Will be working on car tonight, tps , wet plug check, try wire wideband gauge ect...

 

ok

 

Burn2 Moates reads eprom ok but not able to find file/bin in directories. Is there a trick to finding this read?


This is chip that somehow got the right info. Just needs midrange and wot adjusted. Tried to find file and read in Tunerpro. I originally burned this but didn't write it down. lol

 

After reading, simply save buffer to a file. Its up to you to select a path and give it a meaningful filename.

 

thanks, Orr89 has made an impact on this tune also. Started tonight and IDLE .....ed Great tonight. Thanks for file tagging help... it Worked.

 

Thanks Orr89RocZ Got the "Start up" and "Idle" an hour ago. first real progress in over 3 months of reburns. thank you!
still have wideband install going on and iac delete issues but now I have Hope.