Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine> 1997 Blazer 4.3L V6 L35 Fuel Injection
User Name
lost password?   |   register now

Thread: 1997 Blazer 4.3L V6 L35 Fuel Injection Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
02-25-2008 06:43 PM
Vortech 4.3 you have an SFI. check out the forums.
02-25-2008 10:55 AM
monette999 I like to convert my Blazer to Liquid Petrolium Gas Injection.

LPG in Europe or Autogas, or GPL.

02-25-2008 10:17 AM
monette999 Vortech,
if it is a L35 engine. What do I have ?

do you need the VIN ?

02-24-2008 01:15 PM
Vortech 4.3 it should have 4 O2's, left, right, 1 before and 1 after the cat.

that is the "SFI" fuel injection, 96+. it has 6 injectors in a central block.

"CPI" has 1 throttle body type injector in a central block. that goes out to 6 poppets.
02-23-2008 11:31 PM
carsavvycook As the above post's you do have 3 0'2 sensors. The injection unit is called a CPI Fuel injection. I wonder why you are asking for this information. Are you having a starting or drive ability issue?
02-23-2008 11:11 PM
sbchevfreak You have what is known as CPFI. There are 6 injectors in a central "pod", with "spider" or capillary tubes running to poppet nozzels in the intake ports. As for O2's, you should have one in each pipe coming down from the manifols, and one AFTER the converter.
02-23-2008 05:48 PM
DoubleVision It should have 3 Oxygen sensors. My fathers 98 chevy pickup with the same engine does. One for each bank and another right before the cat converter.
02-23-2008 05:31 PM
troy norrad
re: 1997 blazer 4.3 l

Hi ok to my understanding monopoint is a single injector in the throttle body or you will have 1 per cylinder in the manifold with spider wires running to them, 1 per cylinder is multiport, as far as 02 sensors most have 1 but you may have 2, 1 per side on the exhaust manifold or the pipe right after TROY
02-23-2008 04:11 PM
1997 Blazer 4.3L V6 L35 Fuel Injection

what Fuel Injection System has my 1997 Blazer 4.3L V6 L35.

Is it a Monopoit Injector ?
How many O2 sensors do I have?


Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -6. The time now is 03:58 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.