mstemp Mike Stemp Calgary, Canada (223 posts) Registered: 11/25/2009 07:18AM Main British Car: 1980 MGB Rover 4.6L |
14CUX Fuel Injection
For those of you using the Land Rover fuel injection I would like to let you know of some new developments. Some very clever folks with TVR's have broken down the code and revers engineered the ECU. We now have the ability to read our ECU while running and those who have the brains can even remap the ECU for the cost of a chip burner and a few EPROM chips!
For cheap Ba... like myself this is amazing. You order a USB to TTL cable from Digikey, program the USB. Make up a simple plug to replace the Rover TTL 5 pin white diagnostics plug and you are off. I was able to see my sensors, clear my fault codes, see what map I am running, what cells I am in etc. Total costs about $37 CDN with shipping ($8) of the cable. Oh and Fed Ex from Digikey was out of this world, less than 18 hr! For the CDN folks that's unheard of. Have a look at the links. Steve Sprint has given us all teh TVR Maps and also updated them to 6250 rpm and the last LR update "Pride" before the switched to the GEMS system. Now I already mentioned I am cheap so I wont be burning my own chips but there are folks who will burn one for us at less than $25. As I have a strange stumble under medium acceleration I plan to try out a new chip. While MS is a great alternative 90% of what we need can be gotten from our 14CUX and Rover Gauge. [www.pistonheads.com] [www.stevesprint.com] Edited 1 time(s). Last edit at 09/26/2016 04:34PM by mstemp. |
rficalora Rob Ficalora Willis, TX (2764 posts) Registered: 10/24/2007 02:46PM Main British Car: '76 MGB w/CB front, Sebring rear, early metal dash Ford 302 |
Re: 14CUX Fuel Injection
I don't have rover injection, but that is a very cool development!
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BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6470 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: 14CUX Fuel Injection
Excellent! A big step in making that system a very good choice for EFI.
Jim |
donkelly23 Don Kelly Charleston, SC (130 posts) Registered: 07/21/2011 05:13PM Main British Car: 1980 TR7 V8 Z28 FI ECM 4.0 |
Re: 14CUX Fuel Injection
Mike , May I have permission to copy your first post and reprint in on the TWOA forum and Facebook page?
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mstemp Mike Stemp Calgary, Canada (223 posts) Registered: 11/25/2009 07:18AM Main British Car: 1980 MGB Rover 4.6L |
Re: 14CUX Fuel Injection
Don,
No problem, most of its not mine anyways. Steve Sprint, Piston Heads etc are the ones who made this possible after Dan & Collin Bourassa reverse engineered the ECU. Without the TVR boys this would never have happened! |
Re: 14CUX Fuel Injection
Yikes! Is the 14CUX bank-fired or sequential?
I'll admit that I got spoiled when I owned an 86 Mustang GT with SEFI. Incredibly nice technology for a mid-80's vehicle. |
DiDueColpi Fred Key West coast - Canada (1365 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: 14CUX Fuel Injection
The wiring diagram would lead you to believe that the 14CUX is sequential but it is in fact a batch fire system.
With the only engine speed input coming from the ignition coil it has no way of determining which cylinder is firing. It only knows that one of them is, and the engine on average needs X amount of fuel. A few more inputs would be needed as well as a much faster processor. It's all very British. The engine and the fuel injection were never properly introduced. So they tolerate each other to preserve "good form" and carry on. Cheers Fred |
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