Forum: Transmissions and Running Gear
01-23-2011, 07:51 AM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
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Steady state flat ground cruising at 55-60mph is 65mpg at -6degrees f. It is more like 75mpg steady state at 30df. It is very noticeably less when it is very cold. A long trip in...
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Forum: Transmissions and Running Gear
01-20-2011, 10:13 PM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
I installed an on off non momentary switch next to the radio. It turns the main relay on and off. Yes, the heartbeat it takes the motor to die and me to turn the switch back on are miles not being...
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Forum: Transmissions and Running Gear
01-20-2011, 09:17 PM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
Twas about 30df on the way down, 28ish on the way back. I used the block heater for the trip down too.
I was doing some around town hypermiling to the extreme and plenty of EOC tonight, and...
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Forum: Transmissions and Running Gear
01-20-2011, 05:23 PM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
So, good conclusion so far-
Best trip on record since getting the mpguino: 35 miles, 2/3rds of that was interstate. 65.5mpg on the way there trip average. 63.3mpg on the way back 2 hours later. ...
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Forum: Transmissions and Running Gear
01-19-2011, 05:04 PM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
Well, I did clean the maniverter hole with a wire brush drill attachment. I also attached a ground lead to a manifold bolt.
Here's a photo:...
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Forum: Transmissions and Running Gear
01-19-2011, 02:33 PM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
Yes, indeed, the whole maniverter where the 02 sensor is housed is rusty. It's cast, so it's not going to rust off or anything, but it has a lot of surface rust. I will pull it tonight and clean...
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Forum: Transmissions and Running Gear
01-19-2011, 08:57 AM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
Thanks for the ECU info. It's at least good to know that it isn't possible/feasable.
Is there any other way to test the FPR without a gauge? My book has only info on testing it with a pressure...
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Forum: Transmissions and Running Gear
01-18-2011, 06:17 PM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
Wouldn't getting into actual lean burn lower torque and raise MPG's?
That suggests that my extra torque had to have been coming from some other source. So, we are back to a couple possibilities:...
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Forum: Transmissions and Running Gear
01-18-2011, 06:07 PM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
75mpg on a flat at 50mph was ONLY when this sudden bit of torque happened. I only noticed this happen during long trips even in summer. The problem is, the majority of the time, 50mph on a flat is...
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Forum: Transmissions and Running Gear
01-18-2011, 04:08 PM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
The MPGUIONO routinely goes to the 150-250mpg range. Usually when slightly decelerating and not DFCO. I was on a level plain, slowing down slightly, when the gauge jumped to 104 and I got more...
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Forum: Transmissions and Running Gear
01-18-2011, 01:28 PM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
Another thought, after reading your symptoms, is that I was having a very random misfire before the new plug wires. It would happen so seldom that it was almost not noticeable. Maybe once in 400...
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Forum: Transmissions and Running Gear
01-18-2011, 01:20 PM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
So, more time in the garage-
Checked continuity between injector and ECU. The 12v lines all have 12v all the time. With the key off, they have 5ohms or so resistance to ground.
The ground wires...
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Forum: Transmissions and Running Gear
01-18-2011, 09:09 AM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
HC-
If one injector wasn't working right, all other injectors would compensate because the 02 sensor would catch the lean or rich mix and adjust accordingly. So, if one injector was giving very...
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Forum: Transmissions and Running Gear
01-17-2011, 10:17 PM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
So, I did some things today to the car:
Pulled and cleaned all 4 injectors. Swapped in one different injector because one of the ones on the car wasn't flowing well. It was almost not noticeable,...
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Forum: Transmissions and Running Gear
01-16-2011, 11:23 AM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
Does the coolant temp sensor also feed the dash? Or is it a separate sensor like many cars have?
I'll run the tests on it tomorrow and verity it's operation. I may actually just swap it out with...
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Forum: Transmissions and Running Gear
01-16-2011, 10:59 AM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
Forgive me, what does the acronym CTS stand for? I'd be happy to monitor it if I knew what it was!
The injector idea is certainly possible. I have now have 8 spare injectors. I'm going to clean...
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Forum: Transmissions and Running Gear
01-16-2011, 05:53 AM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
02-
Brand new NTK 24300
Clogged cat-
Maybe? Looks open when peering in through 02 sensor opening. Would this cause sudden changes in power?
Sticky brakes-
Nada. Checked and re-checked and...
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Forum: Transmissions and Running Gear
01-15-2011, 09:44 PM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
Okay, so plot thickens.
On the drive tonight (40 miles each way) it was snowing heavily on the way there. It was also very windy (gusty, not one direction). The extra torque was there, no doubt. ...
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Forum: Transmissions and Running Gear
01-15-2011, 11:57 AM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
Okay, so, some updates.
I pulled the valve cover and spun the crank manually. All cylinders are operating in 3 valve (12 valve) mode with the engine off. I put the cover back on (more work than...
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Forum: Transmissions and Running Gear
01-15-2011, 07:28 AM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
I tried that when I got home. No beans. Just a check engine light.
Here's my current theory:
The mechanical end of my vtec is stuck in 16v mode all the time. THis would explain the very low...
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Forum: Transmissions and Running Gear
01-15-2011, 12:21 AM
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Replies: 53
Views: 10,867
Re: VTEC-E question, help!
Okay, three other things:
I was in 5th gear at the time of the incident.
Two:
I checked the electrical side of things from the haynes manual. The only thing that was supposedly wrong is that...
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Forum: Transmissions and Running Gear
01-14-2011, 11:25 PM
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Replies: 53
Views: 10,867
VTEC-E question, help!
93' civic vx. Federally.
So I've had a perplexing thing happen. This has happened before, but I didn't have a gauge to prove my theory.
After driving for about 24 miles, (it was -3at the start of...
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