Can Megasquirt control GM CSFI via batch fire?

Specifications, applications, part numbers, and prices for various OEM fuel injection components.
Post Reply
dcg9381
MegaSquirt Newbie
Posts: 23
Joined: Sun Mar 27, 2005 2:34 pm
Location: Austin, TX

Can Megasquirt control GM CSFI via batch fire?

Post by dcg9381 »

So a 97 Blazer came up locally that has a relatively new 4.3L in it. It's complete and the price is right..
I'm looking at using it in an 88 Runner. I want to megasquirt it - for the tuning/control and maybe for use with a little 100k rpm power adder.
Here's what I don't know. 1997 W-Code 4.3L have CSFI. They've got the spider manifold with poppets. The poppets are apparently controlled by solenoids.
I see conversions for CSFI to MPFI:http://www.fuelinjector.citymaker.com/V ... rsion.html
These conversions obviously resolve the leaking poppet issue that is common on these motors.. As they appear to be GM-computer compatible, this makes me think that I can treat them like normal injectors (high/low impedance)

Can anyone confirm that megasquirt has been used successfully with CSFI? I've searched here and many other places with some indications of people thinking about it, but no actual success...


An alternative would be to use a marine vortec manifold, where I get my exposed injectors... But then I'm adding another $500 to the motor.
22returbo.net
1981 Toyota 22r Supercharged (fuel only)
1981 Supercharged 22R
1988 Toyota 22RE Turbo (SnSE 029v MT 2.25 )
1988 22RE turbo
Matt Cramer
Super Squirter
Posts: 2951
Joined: Sat Jul 03, 2004 11:35 am

Re: Can Megasquirt control GM CSFI via batch fire?

Post by Matt Cramer »

I think it's been done - they're really just a weird form factor, but pretty conventional from an electronics standpoint.
Post Reply