HHO causing lean condition "DTC P0170"

[zpexploder]

I am running (2) HHO generators and my '96 Exploder ( 5.0 AWD) runs great. I am very happy with the results.. Except with the second generator also came "too Lean Condition Bank 1. ? Why only bank 1? IM/ O2 sensors ready/ heated o2 ready. "Catalyst Not Ready" " evap system not ready" !

My exhaust has NO Emission smell at all. Smells a bit like water vapor.

Will changing the ECU A/F ratio ( sniper flash and software) iherently correct my Lean Condition?

Open for all interpretation. Thanks.

ZPExploder!

 

[Tbars4]

...This thread has some info, and this guy will be interested in your problem..
http://www.explorerforum.com/forums/showthread.php?t=217491

 

[aldive]

Your problem is due to the HHO burn. The O2 sensor(s) is/are reporting a lean condition due to the excess oxygen in the exhaust stream.

 

[Afboy143]

I am running (2) HHO generators and my '96 Exploder ( 5.0 AWD) runs great. I am very happy with the results.. Except with the second generator also came "too Lean Condition Bank 1. ? Why only bank 1? IM/ O2 sensors ready/ heated o2 ready. "Catalyst Not Ready" " evap system not ready" !

My exhaust has NO Emission smell at all. Smells a bit like water vapor.

Will changing the ECU A/F ratio ( sniper flash and software) iherently correct my Lean Condition?

Open for all interpretation. Thanks.

ZPExploder!

Hows the increase in MPG going? Which kit are you using? details details

 

[Paraphoe]

Subscribing.

 

[Afboy143]

Your problem is due to the HHO burn. The O2 sensor(s) is/are reporting a lean condition due to the excess oxygen in the exhaust stream.

Aldive, I know you're the MPG king here. Do you have any experience with HHO kits? Have you been looking into any at all to try?

 

[aldive]

Aldive, I know you're the MPG king here. Do you have any experience with HHO kits? Have you been looking into any at all to try?

I am currently running HHO.

http://www.explorerforum.com/forums/showthread.php?t=217491

 

[zpexploder]

Do i need to inject HHO in each bank?

Is there a vacuum line for each bank on a 5.0 V8? Exploder. Is it necessary to inject HHO in each bank or does one vacuum feed both banks?

 

[zpexploder]

Do i need to inject HHO in each bank?

Is there a vacuum line for each bank on a 5.0 V8? Exploder. Is it necessary to inject HHO in each bank or does one vacuum feed both banks?

 

[CDW6212R]

One input source should be enough, knowing how little flow is coming from the HHO devices. I think it would take 10-50 times as much flow to need another source besides the one vacuum line. I/we are hoping that Al has some success in diagnosing the change in A/F ratios seen by the PCM. Regards,

 

[zpexploder]

What can I do to change A/F ratio for HHO

I am receiving too much O from my HHO generator. Causing my lean condition, in turn causing open loop and wasting fuel. Help. Every other IM is a go when I scan OBD II. What can I do to reduce my Oxygen intake or alter my A/F ratio? Any ideas other than altering O2 sensor signals. I have no MAP sensor and am curious about remapping the ECU.

Touche` ECU, touche`

 

[Maniak]

Search around for info on EFIE (electronic fuel injection enhancer).. Those things can change the o2 readings and some can even change MAP/MAF readings.

~Mark

 

[aldive]

Any updates?

 

[JOEZ33]

You give the perfect example of how why an EFIE is needed. HHO increases the efficiency of burned fuel so much that the O2 sensor thinks the engine is running too lean. That's why a lot of people with HHO generators initially experience no mileage gain, or worse mileage- because they haven't installed an EFIE. Some cars can only richen the fuel a certain amount, then the CEL comes on. Once the CEL is on, the O2 sensors are useless- which might be a good thing at this point.

Basically what should happen is when you turn on the HHO you also turn on the EFIE. This EFIE intercepts the O2 signal before it reaches the computer. You then set the EFIE to make the computer think the car is getting the usual O2 signal, not the extra lean signal. It cost probably about 80$ for a Dual EFIE (for dual O2 sensors). You only need to modify the forward O2 sensors signals, since the aft don't affect the fuel mixture.

On mine I have it preset to add +.2 volts to whatever the O2 sensor is putting out. So if the O2 sensor is putting out .3 volts, the computer will see .5 volts and so on. With the EFIE turned off, you can monitor the O2 voltage get a base reading, and then after turning on the HHO you'll see the voltage drop considerably depending on how much your HHO generator makes. The computer compensates by trying to add more fuel to get a normal O2 voltage, but after a while it knows the O2 sensor is giving a false reading for the given vehicle load, speed, temp, etc.- thats when you get an O2 sensor code. -But if you have an EFIE making your base O2 voltage look the same as before the HHO generator was turned on, the check eng light won't come on and you'll gain on the gas mileage.

 

[pufferfish]

i did a fair amount of reseach on these HHO generators after getting crappy results with my explorer and my brother getting 3+ mpg better than without. first, HHO gas exhaust consists of oxygen and water vapor. this has a 2 fold negative impact on a computer controlled engine. the oxygen in the exhaust stream tells the oxygen sensor its running lean. second, the water vapor cools the oxygen sensor, which will result in further failing. it also destroys the sensor pretty quickly.

i have not looked further into how these solutions actually work, but here is what others have done to combat this. first, an O2 senser extension. it takes the sensor farther out of the exhaust stream to prevent moisture from disrupting the sensors function. the next thing to do is change how the computer sees whats happening both going into and out of the engine. this can be handled with MAF tweekers, voltage altering devices between the ecu and the O2 sensor, or a full range tuner/aftermarket ecu.

my opinion is that if HHO were viable for increased gas mileage on an internal combustion engine, auto manufacturers would have been on it. every one of them is trying to achieve better EPA ratings to meet ever increasing standards...especially now that the consumers are finally getting wise to fuel mileage and how it effects the environment as well as their wallets. please spare me the "conspiracy" replies.