I know this has been disscussed before buy I cannot find it. I want to upgrade to MFI from .scfi. I tried gmparts direct but could not find anything need part numbers for everything needed to upgrade.somebody got them? Where can I find instructions to replace sfi with MFI

Does anybody know of aftermarket place to get MFI spider assm. What about Napa. What is reasonable price one would expect to pay for MFI upgrade? do it yourself.

The right side of blazer distributor was arching on all three plug wire connections what does this idicate . The new coil is allso pitted inside the connector.The truck hessitates, surges.No codes the scantool reports misfire monior is ok but it isnot reporting misfires which it feels like it is misfireing


1999 S10 Blazer LS 2dr 4.3l 196,000kms

thanks

 

Did you even try the search feature?...

 

yes sir I did not getting results maybe I am doing something wrong.

Seems I was useing wrong search words

Do'nt worry pretty soon I will have this blazer rebuilt and I will not bother you anymore.
Just want to say I learned a lot from this site and it is great site.

 

Search criteria - 'MFI'

The 13th result is this thread: Hard Starting - Fuel Pressure Concepts

Has the PN for the MFI spider as well as trouble shooting steps to ensure that replacing the spider is the necessary repair.

PNs also listed in the 6th result in the search, but without the necessary trouble shooting steps, etc. Sooner or later I will compile this into one post in the DIY section to keep all of the information correct and in one place.

 

I got one and its been great:

GM PART # 12568332
CATEGORY: Fuel Injector
PACK QTY: 1
CORE CHARGE: $0.00
GM LIST: $295.96
OUR PRICE: $153.90