Search found 207 matches

by E4ODnut
Wed Mar 19, 2014 2:40 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

Do you mean R2 and R3?

How about LED D1?

Do you just jumper the pads for D2?
by E4ODnut
Wed Mar 19, 2014 4:46 am
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

On the BOM for the 6 ch injector board I don't see any Digikey part number or specifications for:
D1
D2,3,4,5,6,7
R2
R3
by E4ODnut
Tue Mar 18, 2014 3:31 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

OK. I'll just modify my copy to reflect what I am going to use.
by E4ODnut
Tue Mar 18, 2014 2:33 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

Is the BOM for the 12 channel analog input board attachment file: analog_input_BOM.csv up to date?

Same thing for the 6 channel injector board BOM inj_6ch.csv?
by E4ODnut
Tue Mar 18, 2014 4:52 am
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

On the subject of simulators. I can't stress too much the value of simulators. They allow you to correct most of your mistakes on the bench with a minimum of cost. I built this one years ago to initially test my MS mods, then added to it the ability to test my new transmission controller. I had to h...
by E4ODnut
Tue Mar 18, 2014 3:41 am
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

Shipping from USA to Canada 101. The big name couriers are bandits, putting it mildly, especially UPS. Their shipping costs are high, but not outrageous. Where they really get you is in brokerage and other fees. You might be able to forgive that if the service was fast and efficient, but it's not. F...
by E4ODnut
Tue Mar 18, 2014 12:37 am
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

Did you just change the shipping costs in your store for the 6 channel driver board to Canada? I could swear it said $25 yesterday. Sure, I can populate another analog board and get components for your 6 channel driver board with the same order. When I get it I'll populate it so we can use it to bli...
by E4ODnut
Tue Mar 18, 2014 12:12 am
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

Jared, Good tip about ESD. I have a Velleman HS10 personal scope, but I use it so seldom that I'm not comfortable with it at all and it's a learning curve in the manual every time I pick it up. I don't think there is any point doing any more tests on this board because it has suffered too much damag...
by E4ODnut
Mon Mar 17, 2014 10:57 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

Speed Density using Manifold Absolute Pressure as opposed to Alpha N (Throttle Position and RPM) is the only option for me. It works well and I want to stay with it. The only thing I would seriously consider changing some time in the future would be to go to waste spark, semi sequential injection us...
by E4ODnut
Mon Mar 17, 2014 6:52 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

Or, I could just scrap the second analog board idea and the injector driver board idea and buy a fully assembled Frankenstein for not much more than the cost of the two boards, components and shipping.

Then, all I need to add is the 12v to 5v Ebay power supply and MAP and Baro sensors. Correct?
by E4ODnut
Mon Mar 17, 2014 6:12 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

I'm going to build a second analog board, so that should take care of analog and input capture inputs. I can bread board something to mount the MAP and Baro sensors on. Now I have to consider outputs. As I understand things the injector driver boards can handle injectors, fuel pump and ignition driv...
by E4ODnut
Mon Mar 17, 2014 4:46 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

Looking at your temperature calculator and the information I have on the Ford temperature sensors I see: 212F @ 2.07K 104F @ 16.15K (approximately mid range of expected values to be measured) -10F @ 160.31K If I use as close as a 16.15K voltage divider resistor (pull up) as I can find I should get a...
by E4ODnut
Mon Mar 17, 2014 4:37 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

One more.
by E4ODnut
Mon Mar 17, 2014 4:36 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

Here are some screen shots, pots full deflection one way, then the other.
by E4ODnut
Mon Mar 17, 2014 3:23 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

OK, I've made some progress with my severely wounded analog board. TPS on Ch 3 R230 pulled CLT on Ch 9 R291 pulled IAT on Ch 12 R321 pulled, W212 jumpered PIP on Ch 11 W211 to PC6 Console still responds to PIP frequency changes. TPS responds but is quite "jumpy", range ~0% to ~100% IAT responds smoo...
by E4ODnut
Mon Mar 17, 2014 2:09 am
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

Oops, I screwed up. Input 10 did not survive, It should have read Input 9. So, TPS will now be on Input 3. CLT will be on Input 9???. I'm assuming we'll leave PIP on Input 11. That leaves us IAT for Input 12 connected to what pin on Discovery???? If this works for you then I assume I'll pull R230, R...
by E4ODnut
Mon Mar 17, 2014 12:33 am
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

I did a major test. The results are not good. Only Inputs 3, 10, 11 and 12 survived the transplant. It's enough to play around with a bit but that's all. Andrey, where would you like me to distribute things so you can change the firm ware, again? Jared, if the BOM is up to date? If so I'll put toget...
by E4ODnut
Sun Mar 16, 2014 11:29 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

I checked the circuit resistance before as part of my troubleshooting. With the TPS input disconnected I show 10.14k from Input 5 terminal to U202 pin 12. The schematic shows I should have 10.1K so that is well within tolerance. I show 0.509 Meg from pin 12 to ground. I'm using a Circuit Test SX-500...
by E4ODnut
Sun Mar 16, 2014 9:25 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

C250 gone. No change
by E4ODnut
Sun Mar 16, 2014 9:07 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

None of the caps read a short.
by E4ODnut
Sun Mar 16, 2014 8:42 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

I pulled all the diodes except for D310 and D320, being a single diode they only would do half the job anyway. No change. I'm still getting a large voltage drop across R253, R263 and R283. That would indicate there must be some load to cause the current to cause the voltage drop. I don't know how th...
by E4ODnut
Sun Mar 16, 2014 6:58 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

I have to go for a while, will report back in a few hours.
by E4ODnut
Sun Mar 16, 2014 6:44 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

497-2521-1-ND was the part ordered and the part received. I had a look at the data sheet and the pin out is a bit confusing. The mark on the diode is "D95" which would indicate a single diode with the right pin no connection and the left pin reverse biased to ground. If that's the case then it's not...
by E4ODnut
Sun Mar 16, 2014 6:13 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

R250 has been pulled. R251 is 500K.
by E4ODnut
Sun Mar 16, 2014 6:11 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

I'm looking at those Shottky diodes and wondering if the polarity is correct. If it's wrong then that might explain the voltage drop because it would be connecting to ground.
by E4ODnut
Sun Mar 16, 2014 6:04 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

Voltages to ground:
TPS Input 5 = 5.00v
R252 in = 5.00v
R252 out 1.678v
R253/C250 = 1.68v
R254 in = 0.583v
R254/255 = 0.290v
PA 4 = 0.290v

I see similar voltage drops across R262 andR282
by E4ODnut
Sun Mar 16, 2014 5:38 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

MAP is a MPX4250 but it's not connected to the analog board at this time. It's a 2 bar sensor with full output ~ 4.5 volts if I recall. At atmospheric it is generating about 2.2 volts. More interesting stuff. RPM still responds to changes in 555 timer settings. CLT gauge responds. TPS and IAT gauges...
by E4ODnut
Sun Mar 16, 2014 5:12 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

I was able to repair channels 1 and 3 (I think) so they are now available to us as well. I'll get right on the firmware update.
by E4ODnut
Sun Mar 16, 2014 4:45 pm
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

It's been an interesting morning. I started by seeing if I could find out what happened to my CLT signal. Turns out there was an open between U202 pins 1 and 2 and R274. I either damaged the chip or pulled a pad off the board, most probably the latter. So then I thought I'd better check for continui...
by E4ODnut
Sun Mar 16, 2014 4:24 am
Forum: Your car & your engine
Topic: 1995 Ford E-150
Replies: 350
Views: 61332

Re: 1995 Ford E-150

TPS, IAT, CLT and EGO pots are all nominal 10k. I measure IAT at 8.95k, and CLT at 9.27k. I can't measure TPS or EGO without removing from then from the circuit. What junctions would you like me to check under what conditions?