I'm converting my 54 Chevy street rod over to TPI with some parts I got from the bone yard along with a Gen 7 DFI I purchased. Based upon what I've read, it's probably in my best interest to install the Knock Sensor even if it isn't required (not 100% sure about that either).

Does anyone know if I need to find an Electronic Spark Control Module (ESC) to go with the Knock Sensor or do I plug the sensor directly into the Accel Gen VII ECM? I don't have a knock sensor yet so I don't even know what the connection looks like. I called Arizona TPI and the guy on the phone appeared to be about as informed as myself regarding this matter. Said I needed to talk to the tech support guy who isn't there. Perhaps one of you can clarify this for me because I can't ever seem to get in touch with the tech guy at Arizona TPI.

Don't see anything on the web about modifying these systems to eliminate emission type stuff. I want to operate in closed loop but don't want to spend money on things I don't need since I'm exempt from the sniffer.

 

You need a module. The DFI is looking for a GM-style signal, where the knock module pulls the ESC signal low to indicate knocking. Obviously, if you've got one suited for your engine, you're better off with it than without.

Open/closed loop operation is as easy as flipping a switch in the interface software. No extra parts needed, unless you want to run a wideband O2 sensor.

 

Thanks, I'm a little disappointed with Arizona TPI regarding their inability to answer questions. I'm getting real close to firing it up but I'm still concerned about the EGR valve that I'm not going to install. They told me I won't get any failure codes by simply not installing it and blocking off all the openings. Says it's not in the PROM. If it's not in the PROM then would I get a code if I was using the EGR? Doesn't make any sense to me. The first time I called and asked the same question about a year ago one of them told me I needed to connect it and tuck it away somewhere. These guys really keep me confused.

 

where is the module located on the 3rd gen?

 

I don't have a module. Just a wire connection. I assume it plugs into the ESC Module.

 

I would go to the Accel DFI website and call DFI support. I contacted them a few times over the last month for Gen 6 help and they were very helpful...on a product that they haven't sold for 2-4 years!

 

Do you know the website address?

 

There are a bunch of aftermarket EFI manufactuers and their web sites in the sticky up top.

RBob.

 

This is from sticky.
They have been pretty helpful both by email and phone.

Accel DFI

http://www.mrgasket.com/
http://go.mrgasket.com/Brands.aspx?...randselection=1
http://go.mrgasket.com/calmap/calmapdownload.asp

 

Thanks for the Links. I've sent my questions to Mr. Gasket and now I'm waiting to see what they say. Will post their response as soon as I receive it.

Appreciate the help.

 

Here is what you could do....
If you take a look at the schematic for the module/sensor on the 3 gen, you will find there are 3 wires plus the input sig from sensor.
Go back to donor car and remove module...looks like fan and fuel pump relay. Go to auto parts store and find female connector for the Red connector on 7 Gen harness. Just follow the schematic to set up wires-YOU WILL HAVE TO COMPARE BOTH SCHEMATIC TO MAKE CERTAIN NO MISTAKES ARE MADE, and you have just saved yourself some $$$.
Found this out yesterday. Let me know if you need the wire config.

 

Outstanding! If you have the configuration handy, I would like to have a copy. If not, I'm sure I can get it. I was going to go ahead and start the engine and begin tuning, but with this info I might as well wait and install these components first.

My 54 Chevy Belair has a slightly modified 80 Vette 350 with a BW Super T10 4 speed - all sitting on top of 80 Vette IFS & IRS. It was a lot of fun before the TPI swap but I can't harldy wait to see what a difference it makes compared to the old QJ set up I had. I set in it last night and was going about 150 MPH in my garage. Wife thinks I'm nuts.

 

Here is the layout for the ESC module:

OE Gen 7 red connector
Terminal
a-blank
b-Power (Ingnition) pink/blk a-ignition
c-ECM blk b-ECM
d-ground brn c-ground
e-knock sensor pig tail white

If you have the donor ESC module and connector, it will have the
4 wires as listed. Match these up with the Gen 7 and wa la.

 

Lost data during transmission..posting again.

the lay out should be as follow:

Donor ESC module and connector Gen 7 red connector
a-blank
b-power pnk/blk a-power
c-ECM blk b-ECM purple
d-ground brn c-ground
e-Sensor white

Match up the wires to that of the Gen 7 and wah lah.

 

where would the module have been on a 85 t/a w/ tpi? I've ripped out my entire tpi harness and was just going to use the gen 7. I would live to be able to reuse my knock sensor. A pic of the module would be very helpful. My old harness is in a messy pile right now.

 

Sorry, no pics. The relays-fuel pump relay, fan relay and ESC module, all look the same. Go back and look at the harness. You have to look at the wires; the color code is just as I described above. The difference will be the color of the sensor wire, it can be white or blue.