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Search: Posts Made By: Larry
Showing results 1 to 50 of 207
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Forum: DIY PROM
05-04-2024, 10:45 AM
Replies: 8
Views: 282
Posted By Larry

Re: Base Timing Benefits?

I set my base timing at 11 degrees with my hotcam 218/228, 10.25 CR. It starts instantly hot or cold. Any less and it cranks over a few times before starting. Any more and it tries to kick back...
Forum: DIY PROM
05-01-2024, 05:55 PM
Replies: 8
Views: 282
Posted By Larry

Re: Base Timing Benefits?

On a stock engine probably no. If you have a cam with more overlap then more advance while cranking could be beneficial.
Forum: DIY PROM
10-04-2023, 07:54 AM
Replies: 5,155
Views: 636,270
Posted By Larry

Re: Tuning with the EBL

[QUOTE=dabomb6608;6514299]Been a pretty long time for posting here. I am possibly going to be jumping back into the TA this winter. Trying to get a game plan together of what needs done and where I...
Forum: DFI and ECM
07-06-2023, 09:42 AM
Replies: 11
Views: 874
Posted By Larry

Re: EBL Flash 2 Wide Band

I have been using the AEM 30-0300 for several years and am pleased with it. I chose it mainly because I had limited space behind the dash where I wanted to mount it. It is permanently installed...
Forum: DIY PROM
06-05-2023, 03:10 PM
Replies: 5,155
Views: 636,270
Posted By Larry

Re: Tuning with the EBL

https://cimg7.ibsrv.net/gimg/www.thirdgen.org-vbulletin/464x672/screenshot_199__599674d90d05cd16dc0d6992dbc1130d4513f549.jpg
I used these settings to get the gauge and EBL to report the same.
Forum: DIY PROM
05-18-2023, 09:46 PM
Replies: 10
Views: 792
Posted By Larry

Re: Tuning for bigger injectors

I have Bosch EV14 35# injectors (they hit 82% duty cycle at 6000 rpm's) and I have changed everything in the in bin that uses pw in the formula. I've been running always open loop for about five...
Forum: DFI and ECM
02-05-2023, 02:42 PM
Replies: 23
Views: 1,830
Posted By Larry

Re: Dynamic efi

With the adapter pluged into your pc. From the taskbar click Search - type DEVICE MANAGER - allow changes YES - ports (COM&LPT) - USB Serial (COM#) Click on this and check properties. It...
Forum: DIY PROM
02-01-2023, 04:03 PM
Replies: 15
Views: 481
Posted By Larry

Re: Improvement of EBL over $8D?

This is my opinion based on my experience. If you have a perfect tune using $8D I don't think that EBL would make any difference. I ran $8D for years and was always trying to tweak something or...
Forum: DIY PROM
01-19-2023, 12:40 PM
Replies: 34
Views: 848
Posted By Larry

Re: OEM Logic for Idle RPM Error Tables

[QUOTE=Sharp38;6490770]1. The difference between OL idle and CL idle is noticeable.

Larry: what does your SA table look like coming off of a 28 degree idle advance (or did you control that through...
Forum: DIY PROM
01-18-2023, 04:45 PM
Replies: 34
Views: 848
Posted By Larry

Re: OEM Logic for Idle RPM Error Tables

Maybe OL idle?[/QUOTE]

I fought my idle for years with a mild cam. I finally went to open loop idle. My combination likes 28 degrees advance (it only fluctuates 27-28) at 750 rpms and afr...
Forum: DFI and ECM
12-20-2022, 09:20 AM
Replies: 23
Views: 1,830
Posted By Larry

Re: Dynamic efi

This is the one I use. https://www.amazon.com/gp/product/B00QG83YVC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1 I did not have to install any drivers, plug and play with windows 11. The 6 foot...
Forum: DFI and ECM
12-09-2022, 05:18 PM
Replies: 23
Views: 1,830
Posted By Larry

Re: Dynamic efi

Did you select the correct com port? It was different on mine after installing windows 11.
Forum: DFI and ECM
12-09-2022, 04:19 PM
Replies: 23
Views: 1,830
Posted By Larry

Re: Dynamic efi

I have windows 11. Works well with the FTDI chipset in my serial adapter but did not work with the Prolific chipset my old cable was using.
Forum: DIY PROM
11-01-2022, 09:47 AM
Replies: 6
Views: 557
Posted By Larry

Re: Understanding IAC from Park to Drive

[QUOTE=BCCHowdy;6483972]Larry - Would you share your spark map with me please? Or your bin and mask?

I am using, GM fastburn heads and hotcam, 10.25cr ...
Forum: DIY PROM
10-31-2022, 08:53 AM
Replies: 6
Views: 557
Posted By Larry

Re: Understanding IAC from Park to Drive

20 degrees advance at idle sound low for a car with a cam. Try a little more. I was surpried to find my motor ended up at 28 degrees @750 rpm before it was really happy.
Forum: DFI and ECM
08-30-2022, 11:00 AM
Replies: 13
Views: 390
Posted By Larry

Re: miniram split blm again.. sorta?

I don't know about the split blm but at one time I was convinced that was my problem. I had an o2 sensor in each bank and I could switch between them but not see both at the same time. If the motor...
Forum: DFI and ECM
08-30-2022, 08:45 AM
Replies: 13
Views: 390
Posted By Larry

Re: miniram split blm again.. sorta?

When the split BLM subject came up years ago I read every thing I could and worried about how to fix it. I could not get my idle where I wanted it. I originally had a 355, hotcam, and vortec heads...
Forum: DIY PROM
08-27-2022, 05:31 PM
Replies: 5,155
Views: 636,270
Posted By Larry

Re: Tuning with the EBL

It should work. I used an innovate for years until it died. I recommend one with a gauge so you can monitor without your pc attached. I use this one ...
Forum: DIY PROM
07-29-2022, 05:55 AM
Replies: 13
Views: 1,119
Posted By Larry

Re: Car running rich with perfect BLM..

I agree. If it is not idling smooth you have misfires which can cause the rich smell. The o2 sensor reads oxygen not fuel. A misfire doesn't burn the oxygen so the sensor thinks it's lean and adds...
Forum: DFI and ECM
07-22-2022, 11:14 AM
Replies: 37
Views: 883
Posted By Larry

Re: Bad ECM or EPROM Confirmation/No Start

[QUOTE=Cartrax;6473280]More playing around -
Volts battery terminal to terminal = 12.1, Ignition on volts to Dizzy 11.5 - That an issue? Dropping .6 volts?
Also while cranking Volts to Ignition...
Forum: DIY PROM
06-25-2022, 08:13 AM
Replies: 4
Views: 608
Posted By Larry

Re: Determining Injector Bias values

Another is https://deatschwerks.com/pages/injector-services
Forum: DIY PROM
03-21-2022, 11:35 AM
Replies: 46
Views: 1,496
Posted By Larry

Re: New 355 with Dynamic EFI runs rough

This is good advice. If you had that much oil in the cylinders your exhaust would be blowing smoke and smell like burning oil. Misfires will fool an o2 sensor because they measure oxygen. ...
Forum: DIY PROM
03-20-2022, 05:57 PM
Replies: 46
Views: 1,496
Posted By Larry

Re: New 355 with Dynamic EFI runs rough

What is your fuel pressure? At idle with 24# injectors I would expect a PW of around 2 or less at idle. And SA of 24 or more with that cam. MAP I would expect around 50 or so when running good.
Forum: DIY PROM
03-20-2022, 02:32 PM
Replies: 46
Views: 1,496
Posted By Larry

Re: New 355 with Dynamic EFI runs rough

Not time to panic yet. I just looked at your data log. You need to get your tune in the ballpark and things will look much better.
Forum: DIY PROM
03-19-2022, 10:15 AM
Replies: 46
Views: 1,496
Posted By Larry

Re: New 355 with Dynamic EFI runs rough

Remember, give it what it wants which is not always what you think it should be. For what it's worth, I run a hotcam 218/228 .525 lift. In open loop it idles smooth @ 750 rpm's with 28 degrees...
Forum: DIY PROM
03-15-2022, 05:46 PM
Replies: 1
Views: 524
Posted By Larry

Crank-prime PW

I assume the prime PW is injected on the first pulse when cranking? If you bump and release the starter without it starting will it prime again when you hit the starter a second time?
Forum: DIY PROM
11-30-2021, 09:48 AM
Replies: 5
Views: 1,264
Posted By Larry

Re: EBL Flash and Windows 11

I am using a Prolific PL2303 and the latest driver for windows 11 did not work for me. My research found other users reported a problem with it also. I just wanted to remind people that even...
Forum: DIY PROM
11-29-2021, 05:04 PM
Replies: 5
Views: 1,264
Posted By Larry

EBL Flash and Windows 11

I had just done my Windows 11 install and everything seemed OK. That is, until I tried to load a new bin file into my ECM. I have the older model EBL Flash that uses a serial to USB adapter and I...
Forum: DIY PROM
10-06-2021, 05:29 PM
Replies: 5,155
Views: 636,270
Posted By Larry

Re: Tuning with the EBL

Does the ECM reset at key on every time? I thought it only reset if the battery side was disconnected.
Forum: DIY PROM
10-04-2021, 04:27 PM
Replies: 5,155
Views: 636,270
Posted By Larry

Re: Tuning with the EBL

[QUOTE=RBob;6443764]You can do this: fire up the WUD, main display. Go to preferences and set the display update rate to 17/second, and the playback rate as low as it goes.

Do a playback of the...
Forum: DIY PROM
10-04-2021, 03:45 PM
Replies: 5,155
Views: 636,270
Posted By Larry

Re: Tuning with the EBL

[QUOTE=RBob;6443740]Voltage to the ECM is dropping too low and it is going through a reset.

Thank you for your reply. Battery was at 12.4V with my Fluke meter directly on the battery posts. ...
Forum: DIY PROM
10-04-2021, 11:13 AM
Replies: 5,155
Views: 636,270
Posted By Larry

Re: Tuning with the EBL

I have a hard cold start issue I've been dealing with for a long time. It only happens first start of the day. Key on, I hear the pump prime, fuel pressure is 43 psi and holds. Crank starter, motor...
Forum: DIY PROM
09-15-2021, 10:16 AM
Replies: 10
Views: 1,722
Posted By Larry

Re: AEM vs Innovate wideband O2

I used an Innovate MTX WB for about five years and replaced the sensor several times. The last sensor replacement did not solve my intermittent problem so about a year ago I replaced the Innovate...
Forum: DIY PROM
08-28-2021, 06:19 PM
Replies: 55
Views: 3,125
Posted By Larry

Re: 6E tuning for lean condition

I understand what you are going through. With my hotcam, fastburn heads, pro-flo, EBL with MAP, I never was happy under 1500 rpm's in closed loop. I run strictly open loop, AFR 13.8 -14 at idle...
Forum: DIY PROM
07-07-2021, 10:41 AM
Replies: 0
Views: 845
Posted By Larry

VE learns with EBL Flash

I discovered something interesting today while doing VE learns. Wide band learns will put you close but it doesn't change the fueling, only calculates corrections which only take affect after you...
Forum: DIY PROM
06-20-2021, 10:21 AM
Replies: 17
Views: 456
Posted By Larry

Re: Does the 32B Code have an RPM cap or limit?

Yes, it's choking you down. Those horses have to breathe! When I switched my 86 Corvette to map I discovered that with the stock air filter housing and the stock maf sensor, I was down to 92 KPa by...
Forum: DIY PROM
06-19-2021, 12:56 PM
Replies: 33
Views: 1,777
Posted By Larry

Re: 85-Z51Vette - EBL Thread - New start

This is a great discussion, I've been on vacation with no internet so I'm catching up now. I've never had the cAFR match the WB AFR when cold. I just set the AFR multiplier vs CTS so it runs and...
Forum: DIY PROM
06-05-2021, 06:38 AM
Replies: 2
Views: 552
Posted By Larry

Re: Force Open loop in EBL FLash-II

You have to be in open loop to do WB VE learns. To force open loop Set Closed Loop-CTS threshold to max or Check Flags for open loop Ide (Opidl) and open loop cruise (OpCrs). And don't forget to make...
Forum: DIY PROM
06-03-2021, 12:47 PM
Replies: 56
Views: 2,616
Posted By Larry

Re: EBL Flash-II tuning for MPG

W
https://cimg4.ibsrv.net/gimg/www.thirdgen.org-vbulletin/1177x887/screenshot_128__c7f8f654d9450033fadd6bf9e3540ae2541846f3.jpg...
Forum: DIY PROM
06-02-2021, 10:00 PM
Replies: 56
Views: 2,616
Posted By Larry

Re: EBL Flash-II tuning for MPG

YES! If it were my car I would copy this table to the EBL. It looks like a good starting point. The other one makes me wonder if GM engineers drink on the job. A WB VE learn works great and is...
Forum: DIY PROM
06-02-2021, 06:42 PM
Replies: 56
Views: 2,616
Posted By Larry

Re: EBL Flash-II tuning for MPG

Your timing table is definitely not set up for performance or economy. You only have 35 degrees of advance cruising at 2200 rpm's and light throttle. Wide open throttle is only 20 degrees at 4000...
Forum: DIY PROM
05-31-2021, 10:02 PM
Replies: 56
Views: 2,616
Posted By Larry

Re: EBL Flash-II tuning for MPG

You do need a WB to get a good open loop tune but Narrow band VE learns work well for idle and cruise. In closed loop It should put your AFR where it needs to be in that area. You can click on the...
Forum: DIY PROM
05-30-2021, 04:53 PM
Replies: 2
Views: 343
Posted By Larry

Re: EBL Wide Band calibration

It's on the money now. I moved the analog input Sensor ground to the actual senor ground like the instructions state. I was using a more convenient to get to ground before. :doh: That put me...
Forum: DIY PROM
05-30-2021, 04:31 PM
Replies: 56
Views: 2,616
Posted By Larry

Re: EBL Flash-II tuning for MPG

Work on your timing tables. A few degrees more advance at cruising speed makes a big difference in MPG. You should get the same or better MPG than before the EBL switch. Do you have timing...
Forum: DIY PROM
05-20-2021, 10:39 AM
Replies: 2
Views: 343
Posted By Larry

EBL Wide Band calibration

The WB display on my WUD does not match the reading on my gauge. I am using a AEM 30-0300 and the AEM calibration in the ADC channels setup. I believe the dash gauge is correct because it reads...
Forum: DFI and ECM
04-07-2021, 11:30 AM
Replies: 18
Views: 3,222
Posted By Larry

Re: A conversation about electronic HEI distributors

Here is a good article discussing rotor phasing and it has a section on electronic distributers. ...
Forum: DIY PROM
01-23-2021, 01:47 PM
Replies: 3
Views: 481
Posted By Larry

Re: CL based upon RPM (EBL)

I've run an open loop tune for about a year and a half. A manual transmission is a real pain in traffic if it is not smooth at lower rpm's. My combination wants 13-13.5 AFR at idle and gradually...
Forum: DIY PROM
11-24-2020, 06:15 PM
Replies: 69
Views: 18,002
Posted By Larry

Re: ebl SA latency table q's

I just checked my SA using two different timing lights just to be sure. I was 3 degrees under from 2000 through 6000 RPMS. I would have never thought to check and it is so easy to correct. I...
Forum: DFI and ECM
07-22-2020, 11:46 AM
Replies: 23
Views: 1,604
Posted By Larry

Re: Open vs Closed Loop Running

I have been running an open loop tune for several years and am very happy with it. Closed loop was always a problem from idle to 1500 rpm's and I've never found a way to run richer in closed loop...
Forum: DIY PROM
06-30-2020, 08:05 AM
Replies: 15
Views: 1,095
Posted By Larry

Re: Injectors

I fought idle and low speed issues for years and tried three different sets of Bosch 3 injectors. I finally bought a set of 35# (18U-01-0035-8) Deatschwerks injectors and am very pleased.
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