HELP ME!!! only gettin fuel to 1 cylinder!

[sblake01]

What head is on your 240? If it's an N42 or N47 the a PO must have swapped engines. In that case you probably put a 280 manifold on a 280.

[kenz240z]

My '73 originally had an N33 intake/balance tube with an EGR valve. I have since replaced the intake/balance tube with an E46 from a '71. It does not have the EGR valve. The first attached photo is of the N33. The second shows the E46. Hope this helps!

[zman525]

well that makes perfect sense. My 240 was a late 72 so it probably had some of the 73 features

[sblake01]

The 280 setup is considerably different. This is for a 78 but a 76 would be similar in that it is fuel injected rather than carbed.

[zman525]

Yes i notice the difference in the manifolds.. I think im going to put the 280 manifold back on or fabricate the heat shield so i dont have to go through all that trouble again.. As for it running bad it seems perfectly fine. I havent even adjusted the timing yet since i got it. Once i get everthing tuned right ill see if i need to swap the old manifold back on.

[Sweetpea]

ZMan,

Check your fusible links... there is one within the fusible links block for EFI... there is also one that is part of the battery cable. Check both. I had some "finnicky" fusible links that would provide continuity one second, then none the next. I would check these... they could render your whole EFI system inoperable if the fusible link is not connected.

Good luck!!!

[sblake01]

zman, if you'll go back to my above post (#28), you'll see that I have inserted an attachment. In that attachment notice all the potential leaks is the egr is not hooked up.

[bemmerguy714]

No, you're not missing anything. Some people go with sequential injection when they go to a system like a MegaSquirt.

wait. now im confused. you say you could have sequential injection with a megasquirt. did some searching at hybridz and Mobys "MegaSquirt'nSpark MSS/MSnS installation guide" (heres the link) http://forums.hybridz.org/showthread.php?t=88246&highlight=sequential+injection says MS does not support sequential fuel injection. maybe theres a version that supports SFI? someone want to help explain to me?