Knew I had to take some time off from the other EFI thread, but I do continue to monitor, comment and search the other forums for information.
My latest brain child is why can't we have a PnP Speeduino ECU for the '85/'86 1200 GW FI models? Bit of a pie in the sky issue right now, but not insurmountable. This thread is hypothetical at best.
Already know the next question. When are you going to get on with it? Not going to happen for a while, if ever, but something to brainstorm about for the next while.
This Speeduino forum thread demonstrates that this is a possibility. Speeduino forum thread: https://speeduino.com/forum/viewtopic.php?p=58322&hilit=Arduino+Mega+pro+mini#p58322
This thread is a fellow doing a custom PnP Honda OBD2B Arduino Mega Pro Based ECU (fits in stock case) for his wife’s ’01 Honda CRV 5-speed.
The design can be done in Eagle, KiCad, or some other program that allows for PCB design, not just schematics.
He is using the Arduino Mega Pro, the same controller I just bought for playing with. The design can be based on the Speeduino interface board v0.4.4 to simplify connecting to the engine tuning software Tuner Studio.
The interface board can be made to fit the OEM enclosure. The 35 pin ECU enclosure connector would accept the OEM wiring harness connector.
The base features/functions would be for a wasted spark, paired fuel injectors. Most of an EFI features/functions can be used because the basic EFI components are fitted. The trigger system can be dual wheel utilizing the existing crankshaft and camshaft trigger wheels. The crankshaft VR senor can be used with the signal being conditioned from a sine wave to a digital square wave. Using the camshaft VR sensors may work, but if not, need to use Hall Effect sensor(s).
Challenges include:
A Speeduino PnP ECU would benefit the owners of the ‘85/’86 1200 GW FI Models. You would be able to adjust the engine tune when issues arise that are not the result of a failing or failed CFI component.
The new ECU would have a barometric sensor installed similar to the OEM ECU.
The Speeduino Project is open source, and because of this, you can take a design and modify it to suit. You can take the programming/code and modify to suit. What this implies is that a design could be done and bench tested. Once this is proven, next step would be to have the interface board produced and components identified, and beta testing done in real time.
Cheers
My latest brain child is why can't we have a PnP Speeduino ECU for the '85/'86 1200 GW FI models? Bit of a pie in the sky issue right now, but not insurmountable. This thread is hypothetical at best.
Already know the next question. When are you going to get on with it? Not going to happen for a while, if ever, but something to brainstorm about for the next while.
This Speeduino forum thread demonstrates that this is a possibility. Speeduino forum thread: https://speeduino.com/forum/viewtopic.php?p=58322&hilit=Arduino+Mega+pro+mini#p58322
This thread is a fellow doing a custom PnP Honda OBD2B Arduino Mega Pro Based ECU (fits in stock case) for his wife’s ’01 Honda CRV 5-speed.
The design can be done in Eagle, KiCad, or some other program that allows for PCB design, not just schematics.
He is using the Arduino Mega Pro, the same controller I just bought for playing with. The design can be based on the Speeduino interface board v0.4.4 to simplify connecting to the engine tuning software Tuner Studio.
The interface board can be made to fit the OEM enclosure. The 35 pin ECU enclosure connector would accept the OEM wiring harness connector.
The base features/functions would be for a wasted spark, paired fuel injectors. Most of an EFI features/functions can be used because the basic EFI components are fitted. The trigger system can be dual wheel utilizing the existing crankshaft and camshaft trigger wheels. The crankshaft VR senor can be used with the signal being conditioned from a sine wave to a digital square wave. Using the camshaft VR sensors may work, but if not, need to use Hall Effect sensor(s).
Challenges include:
- Duplicating the input signal to the travel computer for a dash tach signal and correct operation the fuel management system;
- Duplicating the OEM ECU diagnostics;
- Using the two PB sensors for MAP signal;
- Duplicating the “get home” aspect of the OEM engine tuning;
- The most challenging, using two camshaft sensors used for fuel injector timing.
A Speeduino PnP ECU would benefit the owners of the ‘85/’86 1200 GW FI Models. You would be able to adjust the engine tune when issues arise that are not the result of a failing or failed CFI component.
The new ECU would have a barometric sensor installed similar to the OEM ECU.
The Speeduino Project is open source, and because of this, you can take a design and modify it to suit. You can take the programming/code and modify to suit. What this implies is that a design could be done and bench tested. Once this is proven, next step would be to have the interface board produced and components identified, and beta testing done in real time.
Cheers