Need help with Water Treatment 87.5 NA
Thread Starter
I am the stig.
Joined: Aug 2005
Posts: 614
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From: San Diego, CA
Need help with Water Treatment 87.5 NA
I have a 87.5 NA base model with 130k on the orig engine and I'm looking to perform RR's Water injection treatment... but I'm not sure which vacuum nipple to use. Here's a picture of my intake manifold with the hoses labeled A B and C. I haven't done much work with the vacuum hoses so I don't really know what's what.
I tried pulling off A and B and put hoses on each, but didn't feel any suction. (Should really suck, right?) Also the car had just started and was at high-idle (1500 rpm, AWS disabled).
I've had the car since 8/05 and I enjoy a good redline every now and then, but usually drive only short distances and barely get the car up to operating temperature. I'm a bit worried about carbon buildup since the previous owners probably never redlined it. (And liked to smoke and run into stuff at low speed, but that's a different story.)
Thanks!
I tried pulling off A and B and put hoses on each, but didn't feel any suction. (Should really suck, right?) Also the car had just started and was at high-idle (1500 rpm, AWS disabled).
I've had the car since 8/05 and I enjoy a good redline every now and then, but usually drive only short distances and barely get the car up to operating temperature. I'm a bit worried about carbon buildup since the previous owners probably never redlined it. (And liked to smoke and run into stuff at low speed, but that's a different story.)
Thanks!
Former Moderator. RIP Icemark.
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From: Rohnert Park CA
None of those. They don't feed all the runners.
You use the middle nipple on the back of the intake at the throttle body. The PCV line runs to it.
That feeds to a runner that opens up into the throttle body before that plates so all rotors and all runners get fed water.
You use the middle nipple on the back of the intake at the throttle body. The PCV line runs to it.
That feeds to a runner that opens up into the throttle body before that plates so all rotors and all runners get fed water.
Thread Starter
I am the stig.
Joined: Aug 2005
Posts: 614
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From: San Diego, CA
Did it idle or run better? Nothing noticible since it was already running pretty good to begin with. It shuddered like hell once I dunked the vac hose into the water, as mentioned in the write up, but otherwise everything was fine. Well, except that there was a beeping noise comming from the passenger side of the dash. Beep pause beep pause.... I chalked it up to the PCM freaking out because someone just tried to drown it.
Here's the video, 4.3 mb of divx. (Not bad for a digital camera.)
http://www.clanwhy.com/twofer/dl/CIMG0192b.AVI
Here's the video, 4.3 mb of divx. (Not bad for a digital camera.)
http://www.clanwhy.com/twofer/dl/CIMG0192b.AVI
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Former Moderator. RIP Icemark.
Joined: Apr 2001
Posts: 25,896
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From: Rohnert Park CA
That beeping is the power steering computer... the beeps reference what has failed... the FAQ for FC sticky thread at the top of this, the 2nd Gen RX-7 technical section has the description of what each beep means.
i did this today and it really didnt smoke that much at all????
the engine was at normal temp. and i held the idle a 3K
why didnt it smoke like the picture in this thread????
the engine was at normal temp. and i held the idle a 3K
why didnt it smoke like the picture in this thread????
Thread Starter
I am the stig.
Joined: Aug 2005
Posts: 614
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From: San Diego, CA
Originally Posted by 88rxn/a
i did this today and it really didnt smoke that much at all????
the engine was at normal temp. and i held the idle a 3K
why didnt it smoke like the picture in this thread????
the engine was at normal temp. and i held the idle a 3K
why didnt it smoke like the picture in this thread????
Rotary Enthusiast
Joined: Aug 2005
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From: OH
would it be better to have it revving at 3ks or 5ks? whcich would make better cleaning steam is what im asking. ohh and do you have a picture of the vac/nipple you used? it would help me out a lot, thanks
Last edited by darksider; Apr 1, 2006 at 08:21 AM.
Thread Starter
I am the stig.
Joined: Aug 2005
Posts: 614
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From: San Diego, CA
To help my smog chances, I performed the Water Ingestion again today, but did it a bit differently this time. I drove the car around for a couple of minutes to get it up to operating temperature, came home, waited a little while doing some other work, then did the treatment. Sadly, I didn't record a video, thinking it would be the same as last time.
It smoked like a **** for the whole gallon of water and a little bit afterward. I let it rev for a while at 2k then dropped it to idle for about 5 mins.
I did notice a few other things.
1. There was a HUGE cloud of white smoke this time. (Probably from being at operating temperature.)
2. Smoke was comming out of the exhaust manifold side of the engine bay and from under the car. (Leaky exhaust?)
3. Same beeping as last time, from behind the speedo though.
This time I got a sound recording of the beeping, and some idle sounds.
http://www.clanwhy.com/twofer/rx7/fc-beep.mp3
0:00 - 0:05 Passenger side
0:05 - 0:23 - Driver's side cab
0:30 Exhaust (Behind car)
0:45 Engine bay
0:58 Under front of car
For reference:
Thoughts?
It smoked like a **** for the whole gallon of water and a little bit afterward. I let it rev for a while at 2k then dropped it to idle for about 5 mins.
I did notice a few other things.
1. There was a HUGE cloud of white smoke this time. (Probably from being at operating temperature.)
2. Smoke was comming out of the exhaust manifold side of the engine bay and from under the car. (Leaky exhaust?)
3. Same beeping as last time, from behind the speedo though.
This time I got a sound recording of the beeping, and some idle sounds.
http://www.clanwhy.com/twofer/rx7/fc-beep.mp3
0:00 - 0:05 Passenger side
0:05 - 0:23 - Driver's side cab
0:30 Exhaust (Behind car)
0:45 Engine bay
0:58 Under front of car
For reference:
Originally Posted by TehFAQ
I keep hearing a beep beep beep
Probably the power steering computer telling you there is a problem with the system. The number of beeps before pausing will indicate the problem.
1-beep, pause, repeat - in case abnormality of speed sensor signal:
In case broken wires or short circuits occur to sensors or harnesses, the buzzer sounds 60-seconds after the engine speed signal of 2200 rpm continues for 18-seconds.
2-beeps, pause, repeat - in case abnormality of engine speed signal:
The buzzer sounds twice and repeats when the vehicle speed signal is missing input and/or no engine speed signal is found (short circuit, broken wire, etc.)
3-beeps, pause, repeat - in case abnormality of stepping motor signal:
The buzzer sounds when there are broken wires or short circuits in coils or harnesses.
4-beeps, pause, repeat - in case abnormality of the power steering microcomputer:
The buzzer sounds 4 and repeats when there are circuit troubles other than with the micro computer.
5-beeps, pause, repeat - in case abnormality of steering sensor signal: Steering sensor is mis-aligned or failed or steering wheel has been improperly installed.
Probably the power steering computer telling you there is a problem with the system. The number of beeps before pausing will indicate the problem.
1-beep, pause, repeat - in case abnormality of speed sensor signal:
In case broken wires or short circuits occur to sensors or harnesses, the buzzer sounds 60-seconds after the engine speed signal of 2200 rpm continues for 18-seconds.
2-beeps, pause, repeat - in case abnormality of engine speed signal:
The buzzer sounds twice and repeats when the vehicle speed signal is missing input and/or no engine speed signal is found (short circuit, broken wire, etc.)
3-beeps, pause, repeat - in case abnormality of stepping motor signal:
The buzzer sounds when there are broken wires or short circuits in coils or harnesses.
4-beeps, pause, repeat - in case abnormality of the power steering microcomputer:
The buzzer sounds 4 and repeats when there are circuit troubles other than with the micro computer.
5-beeps, pause, repeat - in case abnormality of steering sensor signal: Steering sensor is mis-aligned or failed or steering wheel has been improperly installed.
Last edited by Twofer; Oct 16, 2006 at 11:32 PM.
Since this thread was brought back anyways, might as well post in here rather than making a new one.
I tried this the other day, I did about half a gallon from a vaccum nipple on the lower manifold near the front rotor, and one near the rear (s5 n/a intake).
The car sputtered as was explained, but I got no steam/smoke from the exhaust, instead I got water coming out of my oil catch can, not a lot, but probably half a cup full or so. What exactly would that mean?
I tried this the other day, I did about half a gallon from a vaccum nipple on the lower manifold near the front rotor, and one near the rear (s5 n/a intake).
The car sputtered as was explained, but I got no steam/smoke from the exhaust, instead I got water coming out of my oil catch can, not a lot, but probably half a cup full or so. What exactly would that mean?
Junior Member
Joined: Oct 2007
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From: Pearl Harbor, HI
You get water in the crankcase from blowby. I usually do the water injection mod right before an oil change because some does get into your oil. You also want to drive your car for a while after you've done this to get all that water to evaporate and not sit there.
