Injector Offset Adjustment
Originally Posted by jimmyblue
I pulled down the AEM software, it has some injectors
but not the ones I plan to use (Delphi 32#). It might
help some folks.
but not the ones I plan to use (Delphi 32#). It might
help some folks.
Originally Posted by ZL1Killa
noope.
anyways, play with the injector min puls width, the offset table, and the def pulse width
u can get them to work that way
anyways, play with the injector min puls width, the offset table, and the def pulse width
u can get them to work that way
**** i thought it was hard to find... and then when i did find it and made a change (selected an injector and it said it changed something) and then i went to find what it changed and couldn't find it. I know how to get injectors to work, so i said forget it. LOL
Originally Posted by ZL1Killa
**** i thought it was hard to find... and then when i did find it and made a change (selected an injector and it said it changed something) and then i went to find what it changed and couldn't find it. I know how to get injectors to work, so i said forget it. LOL
On my quest for some info on the Motron 60's I found this post in the FI section of the forum. I haven't tried it yet but was wondering if someone that knows more than me (most) could take a look at the tables and see if I could hurt anything by popping this into my tune.
https://ls1tech.com/forums/pcm-diagnostics-tuning/384019-fi-hpt-60-motron-user-s-enter-here.html
This is the only info on these injectors that I have been able to find thus far.
ZL1, I would play with the tables if I had an understanding of how my changes would effect ANYTHING. I haven't a clue which way to change what to get what I want -which, by the way, I think is to get rid of my surging at lower RPM.
https://ls1tech.com/forums/pcm-diagnostics-tuning/384019-fi-hpt-60-motron-user-s-enter-here.html
This is the only info on these injectors that I have been able to find thus far.
ZL1, I would play with the tables if I had an understanding of how my changes would effect ANYTHING. I haven't a clue which way to change what to get what I want -which, by the way, I think is to get rid of my surging at lower RPM.
98Z28, what tuning software you running?
it has got to do more than with the offset table. you have to play with the min &def injector pulse width
lower the numbers by 10%(multiply by -10%) and flash it, see where you are at. also, i can't help u with open loop.... i don't even want to go there with what my car was doing on OL with the motrons.....
do you have a wideband? if so, stick it in the exhaust, change the tables by 10% (all 3, offset, def&min injector puls width) and see what happens at idle. watch your AFR and you should be fine. how do you think i learned what to do; i realized that the pulse width has got to go smaller, so i sit and look at my tables in efi live and change things bit by bit, this might not be the best way to do things but I was damn sure on my way to get them to work, i just ran out of time.
try raising your idle rpm by a 100 or so and see what happens, if the surging still stays. my car wanted to surge back and forth at 800rpm, but we raised it to 950rpm and it was perfect.
it has got to do more than with the offset table. you have to play with the min &def injector pulse width
lower the numbers by 10%(multiply by -10%) and flash it, see where you are at. also, i can't help u with open loop.... i don't even want to go there with what my car was doing on OL with the motrons.....
do you have a wideband? if so, stick it in the exhaust, change the tables by 10% (all 3, offset, def&min injector puls width) and see what happens at idle. watch your AFR and you should be fine. how do you think i learned what to do; i realized that the pulse width has got to go smaller, so i sit and look at my tables in efi live and change things bit by bit, this might not be the best way to do things but I was damn sure on my way to get them to work, i just ran out of time.
try raising your idle rpm by a 100 or so and see what happens, if the surging still stays. my car wanted to surge back and forth at 800rpm, but we raised it to 950rpm and it was perfect.
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Originally Posted by ZL1Killa
98Z28, what tuning software you running?
it has got to do more than with the offset table. you have to play with the min &def injector pulse width
lower the numbers by 10%(multiply by -10%) and flash it, see where you are at. also, i can't help u with open loop.... i don't even want to go there with what my car was doing on OL with the motrons.....
do you have a wideband? if so, stick it in the exhaust, change the tables by 10% (all 3, offset, def&min injector puls width) and see what happens at idle. watch your AFR and you should be fine. how do you think i learned what to do; i realized that the pulse width has got to go smaller, so i sit and look at my tables in efi live and change things bit by bit, this might not be the best way to do things but I was damn sure on my way to get them to work, i just ran out of time.
try raising your idle rpm by a 100 or so and see what happens, if the surging still stays. my car wanted to surge back and forth at 800rpm, but we raised it to 950rpm and it was perfect.
it has got to do more than with the offset table. you have to play with the min &def injector pulse width
lower the numbers by 10%(multiply by -10%) and flash it, see where you are at. also, i can't help u with open loop.... i don't even want to go there with what my car was doing on OL with the motrons.....
do you have a wideband? if so, stick it in the exhaust, change the tables by 10% (all 3, offset, def&min injector puls width) and see what happens at idle. watch your AFR and you should be fine. how do you think i learned what to do; i realized that the pulse width has got to go smaller, so i sit and look at my tables in efi live and change things bit by bit, this might not be the best way to do things but I was damn sure on my way to get them to work, i just ran out of time.
try raising your idle rpm by a 100 or so and see what happens, if the surging still stays. my car wanted to surge back and forth at 800rpm, but we raised it to 950rpm and it was perfect.
I am trying some more changes to my cracker/follwer tables and I will try the canges you lited above next.
The new cracker and follwer settings seem to have helped the surging by "softening" it. It still surges but it is much less abropt. Not sure if I should mess with the offsets now.
I found this post. It has an offset table posted by someone else for the popular injectors. Unfortunately, It is on Offset vs voltage but no kpa. How do you determine for the KPA?
https://ls1tech.com/forums/showthrea...njector+offset
https://ls1tech.com/forums/showthrea...njector+offset
I'd also like to know if there are specific procedures for calibrating the other injector control tables.
I had my VE tuned and the (stock) MAF table slightly tuned, and had stock injectors. I'm adding new heads/cam/etc along with the new injectors.
I had my VE tuned and the (stock) MAF table slightly tuned, and had stock injectors. I'm adding new heads/cam/etc along with the new injectors.
