I'm going to add a pressure transducer to be able to monitor and datalog fuel pressure. I think I've got the wiring figured out, I can use ADC1 or ADC2 inputs. But I'm not sure how to set it up in Tunerstudio. @a91what Can you help me out Steve?
Are you using the AUTEX fuel pressure transducer?
I see a similar one on eBay for $10.
I have a gauge on the schrader valve also. I bought a 1/8" brass 90 and a 1/8" brass T fitting and run the gauge straight up and the transducer out the side of the T.What you ordered is the same one i was looking at.
Until I saw this thread, didn't know these inexpensive ones were available. I have a gauge on the schrader valve which has the schrader to 1/8" NPT adapter. I'd have to create a "T", don't want to give up the mechanical gauge under the hood.
Monitoring fuel pressure under load would be very useful.
I'm using ADC2 for the MAF. ADC1 is still available.
BTW, there are unused pins on the Ford connector, I've already used pin-41 for the WBO2.
Different years may vary, spares for mine are: 5, 8, 11, 18, 28, 39, 41, 44, 51, 55
The DIY might be a bit easier to modify than the PNP, but both use the Microsquirt Module.
My gauge is in the same location as yours. I used the 90 in the end of the schrader adapter to turn it up , then into the "T" , then gauge on top. Once you add the "T", you'll have the same setup I've got.I was going to do something the same. You can just about see it peeking out in this pic. Have all the fittings except for a short or close nipple, left over from troubleshooting the fuel pump before the Megasquirt.
I need to get it up higher to clear the intake hose.
Where do you use the 1/8" brass 90?
It's a lower priority. Need to get the driveshaft back in & the road in front of my house finished, can't get out my driveway.
Do yo have the EGR deleted? I used the EGR connector. In the DIYPNP it is already connected to +5v and ground. I just had to add a jumper from the main harness connector to ADC1 and configure it.Mine now looks like you described yours. Have to figure out the wiring. Pretty much like the MAF which is on AD2.
Choose 3 spare pins on the Ford 60-pin..
I've already used pin-41 for the WBO2. The MAF pins were already connected to the maf but not all were wired to the main board.
Spares for mine are: 5, 8, 11, 18, 28, 39, (41), 44, 51, 55 . The last 3 look like good candidates.
I have spare pins with wires already attached from a connector cut off from a junkyard donor.
My main board is different from yours.
Pressure Signal - ADC1 (to the left of ADC2)
+5V - 5V (my higher res pics show some on P17)
Gnd - SG (Signal Ground, some on bottom edge)
EGR not deleted.Do yo have the EGR deleted? I used the EGR connector. In the DIYPNP it is already connected to +5v and ground. I just had to add a jumper from the main harness connector to ADC1 and configure it.
I didn't explain that very well. My EGR is deleted, so I used the old connector for 5v vref and SG and signal. In the stock harness vref and SG are paralled with the TPS to pin 26 and pin 46, so they were both at the connector already. I just had to jumper from pin 27 to ADC1 on the board. But since you wrote the assembly manual, you probably already know that . Very nice manual by the way! I wish I would have known about it when I built mine. The instructions on the DIYAutotune site aren't very well organized.EGR not deleted.
DIYPNP does not connect EGR by default. You must have connected it.
Need to use Vref instead of 5V.
I should have re-read my own Assembly Manual written 5 years ago.
It's best to not get Vref & SG from the sensors. Get them from the ECU or you could create an unintended ground loop & erratic sensor readings for all the sensors. Add 3 wires from the 60-pin Ford connector to the pressure sensor. Then add 3 wires from the Connector Board to the Main Board.
DIYPNP has these:
VREF (pin-26 on Adapter Board): This connection provides a 5 volt reference voltage for the throttle position sensor, and can be used for some other types of sensors, such as external MAP sensors. These connections are usually marked with something like "5V," "VREF," or "Reference Voltage" in the factory wiring diagram. Caution: Do not let the VREF connection be shorted to ground - this will shut down the DIYPNP.
I saw it was going to be discontinued. It was a fun project. I'm an electrician, and have done a lot of electronics for work and hobby projects over the years, so this was right up my alley. I liked that I could build it myself and actually make my car run well with it( with a lot of @a91what Steve's help). I wasn't happy about the case not fitting in the stock location either. I mounted mine under the passenger seat. I made an extension cable out of one of these.Thanks for the good info. My brain is old & fuzzy at times.
I'll tap into the existing harness for Vref & SG with some T-connectors & run the signal back to a spare pin.
BTW, DIYPNP is no more, i.e,. End of Life
I know of someone who modified the case to fit inside the kick panel, just like the OEM.
They machined the case to be the required 3/8" thinner.
I mounted mine under the glove compartment along with the WBO2 controller, the advantage being, it can be removed in less than 5 min.
|Thread starter||Similar threads||Forum||Replies||Date|
|R||Fuel smell||1996 - 2004 SN95 Mustang -General/Talk-||0|
|Fuel Carter By Aeromotive Fuel Pump - Anybody Have Any Experience?||Fox 5.0 Mustang Tech||2|
|L||2000 ford mustang gt fuel pump no power||1996 - 2004 SN95 Mustang -General/Talk-||1|
|Knock sensor for MS2 DIYPNP||Digital Self-tuning Forum||4|
|Megasquirt/tuner Studio Tech Thread||Digital Self-tuning Forum||11|