I have an opportunity to acquire a 97 4.3 V-6 CSFI engine. It has had the poppet injectors replaced with electronic injectors. Will MS support this engine?
Appreciate the info.
Thanks,
John Mulhall
97 Chevy V-6 CSFI engine support
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jmulhall
97 Chevy V-6 CSFI engine support
Just another NEWBIE with another question -
I have an opportunity to acquire a 97 4.3 V-6 CSFI engine. It has had the poppet injectors replaced with electronic injectors. Will MS support this engine?
Appreciate the info.
Thanks,
John Mulhall
I have an opportunity to acquire a 97 4.3 V-6 CSFI engine. It has had the poppet injectors replaced with electronic injectors. Will MS support this engine?
Appreciate the info.
Thanks,
John Mulhall
-
jmulhall
CSFI - Central SEQUENTIAL FUEL INJECTION
Hello Lance,
Here is what I know about this engine -
First of all This is a Vortec V-6 with the dreaded "poppet type injectors.
Fortunately, this engine was "updated" with replacement electronic injectors
(supposedly the same injectors available in the 2002 V-6 engine or so I have been told) ... Another point of contention with this injection system is their touchy fuel system presure requirements, typically 60-66 PSI.
There are lots of people who curse the 4.3 V-6 ! I beleive the replacement of the poppet valve injectors solves most of the trouble.
I have read elsewhere on this site that a sequential FI engine could also be run on batch fire, so I thought it could prove interesting to do so with this engine. I can acquire the engine as part of a trade, but it comes without harness and is missing some hardware due to being in a bad crash and an engine fire. The visual appearance of the engine is quite good now that I have presure washed it. The only real damage seems to be the wiring harness, throttle body and throttle body air duct.
My intentions are to use this engine and a 700-R4 in a 54 Chevy truck.
The size of this engine really appeals to me. Your work on Megashift interests me. I also saw your note about using the FIDLE solenoid to controll TCC. I like that - A LOT !
BTW- I also just completed my MS and MS stimulator boards last week.
Worked like a charm first time. Only part that gave me any trouble was mounting the FETs to the case. I'm sure others have had the same issues. I am "patiently" waiting for Glen Hoag to send me a power relay board so I can do a nice clean and tidy wiring job on whatever vehicle I choose. I am also looking forward to the MS_II daughter board. I NEED IAC !
BTW
Your work on your 84 Vette looks beautiful.
Many thanks for your reply.
John Mulhall
Here is what I know about this engine -
First of all This is a Vortec V-6 with the dreaded "poppet type injectors.
Fortunately, this engine was "updated" with replacement electronic injectors
(supposedly the same injectors available in the 2002 V-6 engine or so I have been told) ... Another point of contention with this injection system is their touchy fuel system presure requirements, typically 60-66 PSI.
There are lots of people who curse the 4.3 V-6 ! I beleive the replacement of the poppet valve injectors solves most of the trouble.
I have read elsewhere on this site that a sequential FI engine could also be run on batch fire, so I thought it could prove interesting to do so with this engine. I can acquire the engine as part of a trade, but it comes without harness and is missing some hardware due to being in a bad crash and an engine fire. The visual appearance of the engine is quite good now that I have presure washed it. The only real damage seems to be the wiring harness, throttle body and throttle body air duct.
My intentions are to use this engine and a 700-R4 in a 54 Chevy truck.
The size of this engine really appeals to me. Your work on Megashift interests me. I also saw your note about using the FIDLE solenoid to controll TCC. I like that - A LOT !
BTW- I also just completed my MS and MS stimulator boards last week.
Worked like a charm first time. Only part that gave me any trouble was mounting the FETs to the case. I'm sure others have had the same issues. I am "patiently" waiting for Glen Hoag to send me a power relay board so I can do a nice clean and tidy wiring job on whatever vehicle I choose. I am also looking forward to the MS_II daughter board. I NEED IAC !
BTW
Your work on your 84 Vette looks beautiful.
Many thanks for your reply.
John Mulhall
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mp15dc2000
- MegaSquirt Newbie
- Posts: 1
- Joined: Sun Jul 25, 2004 3:10 pm
- Location: westlock,ab
csfi
hello john
this what i know about the engine.
csfi was used from 96-99 for the v6. after 99 it was multiport, traditonal fuelrail. there are indvidual solenoids for each cylinder,attached to each is a poppet nozzle. the pressure regulator is inside the intake. i think your injectors were replaced in 2002 with new ones. if the intake top is plastic and bottom is metal you still have poppet nozzles!
this engine can be run on batch fire. there are separate pins for each injector. you're going to have to find a harness and i hope ihe intake is not damaged bad. the intake is very dificult to take apart and alot more dificult to put back together. one of the seals can swell to 3x its size.
personlly i would stay away from it, too many varibles.
good luck, hope works.
mp15dc2000
this what i know about the engine.
csfi was used from 96-99 for the v6. after 99 it was multiport, traditonal fuelrail. there are indvidual solenoids for each cylinder,attached to each is a poppet nozzle. the pressure regulator is inside the intake. i think your injectors were replaced in 2002 with new ones. if the intake top is plastic and bottom is metal you still have poppet nozzles!
this engine can be run on batch fire. there are separate pins for each injector. you're going to have to find a harness and i hope ihe intake is not damaged bad. the intake is very dificult to take apart and alot more dificult to put back together. one of the seals can swell to 3x its size.
personlly i would stay away from it, too many varibles.
good luck, hope works.
mp15dc2000
Also as a note it would be best to drop by a dealer and pick up new seals to replace your old ones if you take it apart.I have replaced alot of those injectors in the v6 and v8s.Once removed it is almost garenteed that they will not fit properly when you go to put it back together.If they become pinched or out of place you will have created your self a nice vaccum leak to add to your tuning problems.