Honda Civic Hybrid

[jerzhere]

I am looking at installing an HHO unit into my 2006 Honda Civic Hybrid. One issue I am trying to work out is how do I get the HHO Cell to shut off and then come back on when the gas engine shuts down?

For those that may not know, the civic hybrid will auto shut down the engine when the car is at a compete stop and then auto start it again when you take your foot off the brake.

I am thinking there should be a way to tap into a relay or something like that so it will tell the HHO Cell to start only when the engine is running. Due to the why the car works I cannot simply use the ignition on/off.

One other question. Has anyone seen any damage from using HHO. I've seen in some post that damage as occurred when a unit is setup wrong... but I am wondering more about issue with rust/corrosion in the engine/exhaust or issues with increased engine heat.


I imagine some of you will say... why try to increase the mpg on a hybrid. Well let me tell you... they are not what they seem to be! I bought mine brand new in 2006. It was advertised as getting 60/50 (highway/city). For the first year I got about 46 mpg. Then I noticed my tires, all four, were bald. I had to replace all four tired and have a complete alignment down. All this at about 33k miles! Since then, I get about 41 mpg. So the advertised mpg could only be achieved with bad alignment. Meaning it was because there was less tire surface area so it got better mpg. Now, the civic hybrid is being advertised as getting 45 mpg. Go Figure!!!


Thanks!
jerry

[Q-Hack!]

I am looking at installing an HHO unit into my 2006 Honda Civic Hybrid. One issue I am trying to work out is how do I get the HHO Cell to shut off and then come back on when the gas engine shuts down?

For those that may not know, the civic hybrid will auto shut down the engine when the car is at a compete stop and then auto start it again when you take your foot off the brake.

I am thinking there should be a way to tap into a relay or something like that so it will tell the HHO Cell to start only when the engine is running. Due to the why the car works I cannot simply use the ignition on/off.

You could just attach the relay to the brake light/pedal switch.

One other question. Has anyone seen any damage from using HHO. I've seen in some post that damage as occurred when a unit is setup wrong... but I am wondering more about issue with rust/corrosion in the engine/exhaust or issues with increased engine heat.

Thanks!
jerry

For those who live in areas where the roads are salted is a bigger issue than the amount of corrosion created by the HHO systems. I look at it this way... I expect my exhaust to rust out eventually. When it does, I will replace it with a stainless steel version. If that happens sooner with the use of HHO then so be it, I have already budgeted for it.

[redneck323]

If it were me i would run the cell relay off the supply terminal of the fuel pump relay that way when the gas motor comes on the fuel pump obviously comes on energizing your cell relay. I havnt worked on a civic hybrid yet but so i dont know if it has a easliy accessible fuel pump relay but if not just find a fused source on the engine that only energizes when the gas engine comes on. Use a voltmeter to be sure but other possible places maybe the ignition coil(s) other than that i cant think of anything else right now that would have 12volts most others are 5v reference based.

Good Luck

[Q-Hack!]

If it were me i would run the cell relay off the supply terminal of the fuel pump relay that way when the gas motor comes on the fuel pump obviously comes on energizing your cell relay. I havnt worked on a civic hybrid yet but so i dont know if it has a easliy accessible fuel pump relay but if not just find a fused source on the engine that only energizes when the gas engine comes on. Use a voltmeter to be sure but other possible places maybe the ignition coil(s) other than that i cant think of anything else right now that would have 12volts most others are 5v reference based.

Good Luck

This is assuming that your fuel pump isn't an always on type. I have always been under the impression that the fuel pump remains on with the ignition so that the response time is faster. I could be wrong about this though.

[jerzhere]

If it were me i would run the cell relay off the supply terminal of the fuel pump relay that way when the gas motor comes on the fuel pump obviously comes on energizing your cell relay. I havnt worked on a civic hybrid yet but so i dont know if it has a easliy accessible fuel pump relay but if not just find a fused source on the engine that only energizes when the gas engine comes on. Use a voltmeter to be sure but other possible places maybe the ignition coil(s) other than that i cant think of anything else right now that would have 12volts most others are 5v reference based.

Good Luck

I think this is on the right track. The pedal relay would not work because sometimes the gas engine does not shut off at a stop. It'll be a while before I am ready to install a cell... once I do I'll post the results.

[Painless]

There must be a relay that initiates the electric motor when the gas engine cuts off. You could invert that signal and use it for your relay.

[Q-Hack!]

There must be a relay that initiates the electric motor when the gas engine cuts off. You could invert that signal and use it for your relay.

I would imagine that signal would come from the cars CPU. Of course autozone.com doesn't have any information on the hybrids. A schematic would be usefull.

[alpha-dog]

Can you use a oil pressure switch or vaccuum switch

[Q-Hack!]

Can you use a oil pressure switch or vaccuum switch

Something like this:

http://www.directindustry.com/prod/m...69-351931.html

[redneck323]

Well Jerzhere I did some looking online to see if the fuel pump runs continuosly which i had no idea they would do that if they are trying to save fuel economy but it makes sense for a smoother transition from electric to gas. I work in the field and if i remember i will call my local honda buddy and find out for you. I know there has got to be a 12 volt switching source when the engine starts.As far as inverting a signal from the electric motor source i dont know maybe thats the answer but i hope you know not to toy with the hybrid stuff unless you know exactly what you are doing. There is lots of voltage in the hybrid systems.By the way i found this pretty interesting site about hypermiling your Civic pretty informal what i read anyhow i didnt read alot but may be helpful. http://www.cleanmpg.com/forums/showthread.php?t=1306 Good Luck I will get ya some info tomarrow and try to get it here for you