Interested to see the result. I have the same injectors laying on my work bench home and was wondering if they were digi 1 compatible.
So im running some supercharged buick riveria injectors and they are not firing. I connected my test light to the main plug and it was flashing during cranking, very slight flash but a flash. Anyone tried using these? Anyone using different #30 injectors that work well? Any input would be appreciated.
I did a quick search and I found that those injectors are supposed have 14 ohms resistance so they should be fine. The way the injectors fire on a digifant ECU is, they have 12 volts connected to them and the ECU provides the ground path to fire the injectors. Have you measured your voltage at the main injector harness plug? It is fed from the Fuel pump relay - terminal 87. Also check the ECU grounds if the voltage checks out ok. The other possibility is that the injectors had fuel in them and sat for a while and are now gummed up. Or... the ECU is messed up? Was it running before the injector swap?
I have 12 volts at the injector harness. I connected my test light to the harness and it flashed while turning over. It did run before the injector swap....it actually caught fire due to a bad fuel line and toasted about 7 wires plus the injector harness. I repaired the burnt wires and replaced the fuel rail, fpr and injectors. I connected an injector tester to a couple injectors after removing the rail and they still didnt fire. I have a few printouts from my work so im going to test the grounds and voltage in the harness and ecu. I believe you are probably right though....they are probably all gummed up from sitting, I did get them from pull-a-part.
Anybody know of any other injectors that are compatible? I hate running through the uber long list of injectors and specs.
I'm running these: M-9593-B302 (ford part number) Bosch 0 280 150 945 - old gen 1 "Red Tops"
I also have these: M-9535-BB302 (ford part number) Bosch 0 280 155 759 - gen 3 "Skinnies"
I haven't tried the Skinnies yet, but it is said they have better atomization.
Been doing some research and am finding some candidates, I will further update when I have solid answers.
Thanks Digi...you have been much help here. I never get anyone to post in my threads let alone have something intelligent to say.
I'm not sure which cars run these stock. The injectors you have should work fine - they are the gen 3 version. I would take them and get them tested at a fuel injector shop. If they test ok, then start looking at your wiring, or your ECU. I'm sure you already know but Digi is batch fire , so all injectors fire at the same time - hence only 2 wires on the main harness connector.
Brought the injectors to work and ran some pb through them and tapped on them till they fired. put em back in and truck runs good. Thanks for all the help!
BTW.... stock g60, 68mm pulley, 3.5 bar fpr #30 injectors. 14psi so far. no chip no cam
*EDIT* Fixed a few boost leaks and am now getting 18psi at redline.
Last edited by vr2jetta; 06-09-2012 at 12:31 PM. Reason: Information added
As long as your O2 sensor is working properly it will run fine(closed loop), but.... when the O2 fails to work properly, you are going to be running way too rich. Even withhout the 3.5 bar FPR, it would run rich with no O2 sensor. Have you tried running it without the O2 sensor plugged in? When you change injectors, you really should map the chip properly for the new setup. Just because it seems to run fine doesn't mean you won't wash your bores and cause issues down the road.
3 bar FPR vacuum/Boost line connected, car running 1.5 bar boost => Fuel pressure in rail = 4.5 bar
pressure across the injectors is: 4.5 bar - 1.5 bar = 3 bar
3 bar FPR no vacuum/Boost line, car running 1.5 bar boost => Fuel pressure in rail = 3.0 bar
pressure across the injectors is: 3.0 bar - 1.5 bar = 1.5 bar
if the flow rate of the injectors is 30#/hr at 3 bar, they are reduced to 21.2#/hr when running 1.5bar
Yes, I unplugged the vacuum/boost line. I plugged it back in and ran it for a bit. I believe the injectors are cleaning out because its starting to run richer. Still a bit leaner than stock but those readings are coming from a narrow band, not a wide band so who knows how accurate that is. other than that its running real well.
STFU, worry about your own $hit unless you have some useful information to share. And just so you know, I am actually running a tad lean.
Let me guess...I'm going to burn a hole in my piston? Well thats my problem....
And for the record, these injectors work wonderfully! Spanked a 78 rabbit with a 1.8t the other day with my uber slow, overfuelled, grenade powered g60 pickup.
If you are running lean with your setup, something is really wrong with your setup. How old is your fuel pump? What AF do you see on your wide band?
BTW, I have been making G60 chips for 7 years now, and rebuild G60 chargers for 10, so I think I know a thing or two about G60's.....
I've seen 2 motors blow because of fuel pooling on the piston. I've also seen a motor blow because of a faulty injector and running lean. It's only about $100 to have a set of 4 inectors cleaned and balance tested. Small investment when you think abou the cost to replace a motor.
You can #30 injectors in some Volvos at the junkyard. Can't remember which ones but if you seach the archives you can find out.
0280155831 / 9186340
I just found the rebuilt Volvo set from I lost in the garage. There used on V70 Xc90 S60 S70 C70
12 ohm & Flow 334cc / 3.8bar .. All 6 are going in the classifieds soon. I paid $85 shipped from International-autotechnik in Canada.
¡¡ opɐɹɹoɔ ǝɥʇ!!!ƃuıʇɔǝdsǝɹ !!!▀▀▀
!! odarroɔ ǝht gnitɔepser !! ▀▀▀
A heavily ported cylinder head and large cam 268-272 will show a lower boost numbers on the gauge then a stock engine on the same pulley/charger. But require a more fuel at said boost numbers.
I run some Volvo pinks, they are basically an OEM G60 replacement. But newer EV6 style, direct swap, and they work extremely well with my SNS chip and 3.5 FPR.
Look like this
| Rust | Zip-Ties | JB Weld | Bad Idle | Scrapes Ground | Rubs when Turning | Busted Ass Door handles |
Get a set of fpr's, chips and injectors to suit your setup before you blow it up. I have been mapping enough of these digifant engines in the last 10 years to know......