Keep injector pins 32-35 seperate?

For discussing how to choose sensors and create a wiring harness for all Bowling and Grippo versions of the MegaSquirt® EFI controller.
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MadMax78
MegaSquirt Newbie
Posts: 27
Joined: Sat Jun 27, 2009 9:06 am

Keep injector pins 32-35 seperate?

Post by MadMax78 »

In the ms wiring diagram injector pins 32 and 33 (and 34 and 35) are bridged together. Is this necessary? I'm connecting MS to my stock L-jet wiring harness and there is has separate wires for each injector. So my question is, is it safe to connect the injectors like so:

pin 32 - injector 1
pin 33 - injector 2
pin 34 - injector 3
pin 35 - injector 4
Bernard Fife
Master Squirter
Posts: 475
Joined: Thu Oct 29, 2009 12:54 pm

Re: Keep injector pins 32-35 seperate?

Post by Bernard Fife »

MadMax78,

Yes, you can do this. It works fine for 4 cylinders.

When you have an odd number of cylinders this doesn't work so well, because the point of bridging the pins is to even the electrical load on the connector pins (the pins are rated at 5 Amps each).

With 4 cylinders and one pin per injector, the load should be balanced anyhow, so you don't need to bridge the pins.

Lance.
"Never wrestle with pigs. You both get dirty and the pig likes it.” - George Bernard Shaw
MadMax78
MegaSquirt Newbie
Posts: 27
Joined: Sat Jun 27, 2009 9:06 am

Re: Keep injector pins 32-35 seperate?

Post by MadMax78 »

Thanks for the quick and helpfull reply!

Just finishing up on my final wiring diagram now :)
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