[Tip in fuel?]: How to program it?
Thread Starter
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
[Tip in fuel?]: How to program it?
As seen in the below photo I have a huge hesitation in 1st gear when I mash the gas before the injector pulsewidths come up in WOT and the car really starts pulling. Once past that initial bog/hesitation the car pulls for all its worth. Does anybody have experience playing with the Acceleration Enrichment stuff?
The fields I have available with the $32B code in Tunercat are....
Constants
Max Accel. Enrich. Async Pulse Width
Minimum Delta TPS For Accel. Enrich.
Minimum Delta LV8 for Accel. Enrich.
Tables
Accel. Enrich %BPQ Factor vs. Async Pulse
No. of Accel Enrish Async Pulses vs. Coolant Temp
LV8 Accel. Enrich. Factor vs. Delta LV8
LV8 Accel. Enrich. Coolant Factor vs. Coolant Temp
LV8 Accel. Enrich. Decay Rate vs. Coolant Temp
Thanks!
[Modified by scorp508, 11:45 AM 9/12/2003]
The fields I have available with the $32B code in Tunercat are....
Constants
Max Accel. Enrich. Async Pulse Width
Minimum Delta TPS For Accel. Enrich.
Minimum Delta LV8 for Accel. Enrich.
Tables
Accel. Enrich %BPQ Factor vs. Async Pulse
No. of Accel Enrish Async Pulses vs. Coolant Temp
LV8 Accel. Enrich. Factor vs. Delta LV8
LV8 Accel. Enrich. Coolant Factor vs. Coolant Temp
LV8 Accel. Enrich. Decay Rate vs. Coolant Temp
Thanks!
[Modified by scorp508, 11:45 AM 9/12/2003]
Instructor
Joined: Apr 2002
Posts: 126
Likes: 0
From: port saint lucie florida
Re: [Tip in fuel?]: How to program it? (scorp508)
i have found that the tip in hesitation can be reduced from.
1. make sure the injector constant is correct.
2. find an idle your comfortable with/ cam related.
3. making sure at idle your blms are as close to 128 as possible.
4. your iac counts are 30-40 in drive and anything above 10 in park.
5 your timing at tps closed position is adjusted correctly.around 20'
i know this solved the same problem with mine. best of luck.
1. make sure the injector constant is correct.
2. find an idle your comfortable with/ cam related.
3. making sure at idle your blms are as close to 128 as possible.
4. your iac counts are 30-40 in drive and anything above 10 in park.
5 your timing at tps closed position is adjusted correctly.around 20'
i know this solved the same problem with mine. best of luck.
Thread Starter
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Re: [Tip in fuel?]: How to program it? (old salt)
1. It is set to 24# for 24# Ford SVO injectors. Should I raise slightly this since they are rated at a lower PSI than GM injectors?
2. Right now has a 950 RPM idle with the 219 cam and is smooth.
3. I'll doublecheck this.
4. I have a manual, should i still see 30-40 driving around? At idle I think its 8.
5. I think I've got 21* + 6* base right now. Should it be 21+6 or 15+6 for 21?
Thanks!
2. Right now has a 950 RPM idle with the 219 cam and is smooth.
3. I'll doublecheck this.
4. I have a manual, should i still see 30-40 driving around? At idle I think its 8.
5. I think I've got 21* + 6* base right now. Should it be 21+6 or 15+6 for 21?
Thanks!
Melting Slicks
Joined: May 1999
Posts: 2,037
Likes: 0
From: Sarasota FL
Re: [Tip in fuel?]: How to program it? (scorp508)
Raise Max Accel. Enrich. Async Pulse Width
Lower Minimum Delta TPS For Accel. Enrich.
Lower Minimum Delta LV8 for Accel. Enrich
Raise LV8 Accel. Enrich. Factor vs. Delta LV8
Sorry I can't be more specific, but every combo is different and I'm just starting at AE. Check thirdgen.org for more info. Be careful you don't put yourself in constant AE.
Lower Minimum Delta TPS For Accel. Enrich.
Lower Minimum Delta LV8 for Accel. Enrich
Raise LV8 Accel. Enrich. Factor vs. Delta LV8
Sorry I can't be more specific, but every combo is different and I'm just starting at AE. Check thirdgen.org for more info. Be careful you don't put yourself in constant AE.
Thread Starter
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Re: [Tip in fuel?]: How to program it? (MrNuke)
What sort of scaning software you using for that info? It's wicked! :thumbs:
Intermediate
Joined: Aug 2002
Posts: 35
Likes: 0
From: Iowa City IA
Re: [Tip in fuel?]: How to program it? (scorp508)
I had a similiar problem with the modified TPI engine I have in my pickup. I added 0.1 to the the first 3 values in the LV8 Accel. Enrich. Factor vs. Delta LV8 table. This helped considerably.
However, later on, I dicovered that my fuel pressure regulator was bad and I did not have the correct value for the fuel injector size in the table. After correcting these 2 items, I had to back out the changes in the LV8 Accel. Enrich. Factor vs. Delta LV8 table.
Just a few words of wisdom after :banghead:
However, later on, I dicovered that my fuel pressure regulator was bad and I did not have the correct value for the fuel injector size in the table. After correcting these 2 items, I had to back out the changes in the LV8 Accel. Enrich. Factor vs. Delta LV8 table.
Just a few words of wisdom after :banghead:
