Search found 10521 matches

by cgrey8
Tue Nov 13, 2018 1:13 pm
Forum: Hardware Discussions
Topic: Upgrading wiring for fuel pump?
Replies: 28
Views: 581

Re: Upgrading wiring for fuel pump?

Where are the batteries located? I'm assuming you relocated one to the bed? Or did you find a space under the truck somewhere?
by cgrey8
Sat Nov 10, 2018 6:20 pm
Forum: Hardware Discussions
Topic: Upgrading wiring for fuel pump?
Replies: 28
Views: 581

Re: Upgrading wiring for fuel pump?

That's nice that they actually give a molded plug as opposed to the spade connectors. As a general rule, I don't trust spade connectors...but mostly that's only due to my experience with the cheap ones. The quality that manufacturers would use are designed much better and don't fail the way the chea...
by cgrey8
Sat Nov 10, 2018 7:39 am
Forum: Hardware Discussions
Topic: Upgrading wiring for fuel pump?
Replies: 28
Views: 581

Re: Upgrading wiring for fuel pump?

You might be fine. If you know for a fact that piece of wire will handle the current, then roll with it. But if there's a chance that it'll cause you problems, then drill out the studs or rivits or whatever is transferring the connection from the outside of the tank to the inside so you can install ...
by cgrey8
Fri Nov 09, 2018 3:10 pm
Forum: Hardware Discussions
Topic: Upgrading wiring for fuel pump?
Replies: 28
Views: 581

Re: Upgrading wiring for fuel pump?

I get not wasting money or time, but you are talking about a 800hp build. This isn't a place to skimp. Do it right when it comes to getting the fuel from that pump to the engine which includes getting the "angry pixies" from the battery to the pump.
by cgrey8
Wed Nov 07, 2018 8:20 pm
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Modern day potential of J3 devices beyond TwEECer and QH

...Cgrey - yes - mostly real time isn't actually all THAT critical when you are looking at CPU ticks... and there's 'plenty' of time, even at 15Mhz !!. Even a V8 at 12,000 rpm (!!!) only sparks 800 times a second, or every 1.25 millisecs, which is pretty much forever on a modern CPU, and still 6000...
by cgrey8
Wed Nov 07, 2018 7:06 pm
Forum: Hardware Discussions
Topic: Upgrading wiring for fuel pump?
Replies: 28
Views: 581

Re: Upgrading wiring for fuel pump?

jsa wrote:
Wed Nov 07, 2018 5:07 pm
I don't share your enthusiasm!
Size the fuse to handle short term startup.
Size the circuit to handle long term actual load.
Ensure fuse blows under short conditions before insulation fails.
Save a pittance on wire and terminal rating.
Good points...
by cgrey8
Wed Nov 07, 2018 7:01 pm
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Modern day potential of J3 devices beyond TwEECer and QH

...if you code is clever enough, there's no reason why a higher priority interrupt can't interrupt a current int handler..... it just gets very messy if you're not very careful (been there in commercial stuff, not EEC) as you have to save and restore multiple statuses (stati?) for each interrupt ha...
by cgrey8
Wed Nov 07, 2018 4:58 pm
Forum: Hardware Discussions
Topic: Upgrading wiring for fuel pump?
Replies: 28
Views: 581

Re: Upgrading wiring for fuel pump?

I do believe the Explorers did run a vacuum line back to the in-tank Fuel Pressure Regulator so it could modulate with manifold pressure the way a traditional FPR works. Otherwise the EEC would have to monitor both fuel line pressure and manifold pressure to compensate for the indifference when it c...
by cgrey8
Wed Nov 07, 2018 4:50 pm
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Modern day potential of J3 devices beyond TwEECer and QH

...The code as seen (a LOT) simply loops around the AD_complete flag, whereas there is an interrupt available in the hardware...So you can't get AD to work any faster in actual time, and it's single threaded, it's just that you could be doing something else in the meantime instead of looping... Tha...
by cgrey8
Wed Nov 07, 2018 2:49 pm
Forum: Hardware Discussions
Topic: Upgrading wiring for fuel pump?
Replies: 28
Views: 581

Re: Upgrading wiring for fuel pump?

In the 98-01 Explorer 5.0Ls, it was an in-tank return which gave you a returnless-appearing system by only having 1 line going from the tank to the engine bay. But the EEC didn't modulate the pump. It ran just like a traditional return-style. I suspect the Rangers would work the same, but I can't sa...
by cgrey8
Wed Nov 07, 2018 2:47 pm
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Modern day potential of J3 devices beyond TwEECer and QH

...The AD_complete flag stays low until the command is complete, and you can't queue therefore queue AD requests in the CPU... You can't queue as in the hardware forces the 174 states despite an interrupt being available? Or is the code opting into being subject to this stall, but could've been wri...
by cgrey8
Wed Nov 07, 2018 11:50 am
Forum: Hardware Discussions
Topic: Upgrading wiring for fuel pump?
Replies: 28
Views: 581

Re: Upgrading wiring for fuel pump?

I don't have much to add on this other than to comment about the pump size. 450lph??? You are going to need that much? I run a 255lph in my truck and it was a drop-in replacement for the factory 88lph Walbro. The only positive I can say about it is the TREPerformance pumps are quieter than Walbro......
by cgrey8
Wed Nov 07, 2018 6:18 am
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Modern day potential of J3 devices beyond TwEECer and QH

Hmm...so code doesn't care about the low-bits.
by cgrey8
Tue Nov 06, 2018 7:38 pm
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Modern day potential of J3 devices beyond TwEECer and QH

Ah yes, the upper 10 bits, now you have bumped my memory. See page A5 of EEC Pocket Reference guide. For R4 & R5 Bits 0 to 3 are the AD channels. Bits 4 & 5 are read as zero's Bits 6 to 15 are the AD result... Correct me if I'm wrong, but that is because you read all the analog inputs from the same...
by cgrey8
Tue Nov 06, 2018 6:29 pm
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Modern day potential of J3 devices beyond TwEECer and QH

...One thing jumped out when I did the bench testing. Purely watching AD counts on the software side, all Analog channels changed in steps of 64ADC... So for whatever reason, the hardware is putting the A/D counts in the upper 10 bits of a 16 bit word as opposed to the lower 10 bits. That's why it ...
by cgrey8
Tue Nov 06, 2018 6:07 pm
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Modern day potential of J3 devices beyond TwEECer and QH

Interesting stuff coming from this discussion. But I have something that I need clarified. This is specific to the GUFx era EECs since that's what I have def files for. Both HEGOs have a def file conversion formula as follows: (5.12-(X/12800))/2 Most 0-5v sensors have a X/12800 conversion formula in...
by cgrey8
Tue Nov 06, 2018 2:54 pm
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Modern day potential of J3 devices beyond TwEECer and QH

That's true. HEGOs produce a voltage, usually no higher than about .9ish volts although I guess there's some out there that reach above that??? Mine have only ever hit in the low .8v range when run hard rich and most of the time, not even that high. As for Wideband O2 (aka lambda) sensors, yes, they...
by cgrey8
Tue Nov 06, 2018 7:12 am
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Modern day potential of J3 devices beyond TwEECer and QH

The hego sensor max is around 1V I believe... That's correct. Sometimes ford multiplexes binary inputs on the hego pin. Clamps the analog channel to 5V when some switch closes. It's a minor point but just so I understand, when you say HEGO pin, do you mean EEC pin or processor pin? What's confusing...
by cgrey8
Mon Nov 05, 2018 9:29 pm
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Modern day potential of J3 devices beyond TwEECer and QH

...Isn't the EGO at 2.56V because it can go up or down (i.e. 2.56V is a virtual zero volts at centre)? Or have I got that wrong ??... I'm not aware of their ability to go negative. Even if they did, that wouldn't explain why an A/D value of 0 represents 2.56v and the max A/D (12,500 I think) correl...
by cgrey8
Mon Nov 05, 2018 4:03 pm
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Modern day potential of J3 devices beyond TwEECer and QH

...you can actually repurpose ANY of the inputs and outputs to do something else, within reason. Each injector output is effectively a PWM driver with a decent current capability - this would also drive a (suitable type) wastegate, idle speed valve, and many other kinds of valves too (even a fuel p...
by cgrey8
Mon Nov 05, 2018 6:24 am
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Why auto disassembly is tough

...I've seen S300s provide a stock civic computer with "boost by gear", so no it's not like the current Ford options. The early ones were though. As long as the EEC has the ability to control the boost (presumably some electronic wastegate control), I don't see why boost-by-gear couldn't be done wi...
by cgrey8
Sun Nov 04, 2018 7:50 pm
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Why auto disassembly is tough

What I'm thinking of could do this too and likely do what that Hondata does too, just using different opcodes...same concept. But to your other point, unlike the J3 port devices of today, what I'm envisioning could allow you to add more I/O than what's on the EEC stock. With a device like a DataQ an...
by cgrey8
Thu Nov 01, 2018 10:05 am
Forum: Software Issues & Support
Topic: configure files fail to initialize
Replies: 6
Views: 503

Re: configure files fail to initialize

My last experience with stack traces is that he obfuscates the code, which makes guessing at what the exception is trying to say becomes more difficult. However because of that, he's also going to need your version number so he can reverse the obfuscation himself.
by cgrey8
Fri Oct 26, 2018 5:44 pm
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Why auto disassembly is tough

Well I wouldn't write a home-made EEC-IV/V tune. The plan is that the Beaglebone's processor would simply "feed" the EEC opcodes and operands that would get it to read and write the registers of interest...and that's ALL the EEC's processor would do is marshall data from the I/O and the J3 port. All...
by cgrey8
Fri Oct 26, 2018 7:11 am
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Why auto disassembly is tough

I'm thinking the Beaglebone could host a webserver that would present a webpage. Java is REALLY good at integrating server applets into Java code directly without the need to go through a formal definition file. And if the concept of Java pluggable modules was embraced, which Java9 makes pretty easy...
by cgrey8
Fri Oct 26, 2018 6:46 am
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Re: Why auto disassembly is tough

Actually, I was thinking the project would begin as a legacy EEC-IV/V J3 port solution and morph from there. These are far simpler EECs that control simpler applications with the J3 device being something like a Beaglebone. The Beaglebone's AM3358 processor has 200MHz Realtime coprocessors on them t...
by cgrey8
Fri Oct 26, 2018 5:25 am
Forum: EECGeeks
Topic: Modern day potential of J3 devices beyond TwEECer and QH
Replies: 48
Views: 1015

Modern day potential of J3 devices beyond TwEECer and QH

I split this tangent discussion off into its own thread. Here's the original thread where it formed from: Why auto disassembly is tough Original Post: I just can't help but think how you guys struggle with 32-256k worth of memory. As EECs grow in capacity, so does their memory footprint...into the M...
by cgrey8
Thu Oct 25, 2018 3:18 pm
Forum: EECGeeks
Topic: Why auto disassembly is tough
Replies: 261
Views: 28204

Re: Why auto disassembly is tough

Just out of curiosity, does disassembling this stuff get easier as the processors get newer? Expand the thought beyond EEC-V into modern processors. Does Ford still hand-author assembly in these things or have they embraced C/C++ which would make disassembling them, presumably, easier and more predi...
by cgrey8
Tue Oct 23, 2018 5:17 am
Forum: Tuning the EEC....
Topic: ecc analyzer?
Replies: 2
Views: 330

Re: ecc analyzer?

If you didn't datalog MAFv and only datalogged the MAF values, then EA can "generate" the MAFv column on load as long as your tune's MAF curve is entered into EA as the "first" MAF in the list of 3 curves shown. To get EA to do that generation, you do have to tell it to on the settings tab.
by cgrey8
Sat Oct 20, 2018 1:29 pm
Forum: Hardware Discussions
Topic: Anyone running the PLX SM-AFR Wideband DM-6 Gauge Combo (GEN4)
Replies: 8
Views: 634

Re: Anyone running the PLX SM-AFR Wideband DM-6 Gauge Combo (GEN4)

I know nothing about this product, but is there any chance the USB version is just using an FTDI or Prolific USB serial chip that will create a COM port? If so the problem might be that the FTDI driver just needs to be installed...again assuming that's what the product is based on which wouldn't sur...