2003 Honda Element

This means Hellen
Post Reply
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

2003 Honda Element

Post by AndreyB »

I might be able to borrow a starting & driving 2003 Honda Element on it's last breath. It's loud and there is some talk about only running on three cylinders with a stuck exhaust valve, but so far it moves!

https://raw.githubusercontent.com/wiki/rusefi/rusefi/OEM-Docs/Honda/2003-honda-element-ecu.png whos us ECU and TCU integrated into the same unit.

Dave do know trigger pattern? Do we know anything about transmission control? Do we know _anything_ about this maybe https://en.wikipedia.org/wiki/Honda_K_engine#K24A engine?
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

ECU is somewhere there

Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

image.png
image.png (477.11 KiB) Viewed 4382 times
https://www.phearable.net/information/tech-area/02-04-prb-rsx-type-s-ecu-pin-out-diagrams.html

Dave says those are smart Denso coilsticks 2 ms dwell will run them pretty hot
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

I forgot that "most of Honda's automatic transmissions are unusual in that they do not use planetary gears like nearly all other makers" - that makes this project way less interesting :(
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

No tools are needed to remove Honda Element glove compartment - you can pull those retaining clips more or less with your bare hands.
image.png
image.png (312.47 KiB) Viewed 3896 times
In other news: catalytic converter was stolen at some unknown point in the past.
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

Well, some progress!
Attachments
engine-sniffer.png
engine-sniffer.png (184.64 KiB) Viewed 3706 times
image.png
image.png (324.97 KiB) Viewed 3706 times
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

Good news I do not have IMRC on this engine

IMRC means Intake Manifold Runner Control

pin B22 IMRC valve position sensor potentiometer wow
image.png
image.png (11.46 KiB) Viewed 3706 times
https://my.prostreetonline.com/2014/10/21/dtc-p0661-service-imrc/
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

Attachments
IMG_20211022_205356.jpg
IMG_20211022_205356.jpg (1.2 MiB) Viewed 3680 times
IMG_20211026_172442.jpg
IMG_20211026_172442.jpg (1.22 MiB) Viewed 3684 times
2021-10-26_17_21_50_729rpm_0_maf_0.0.png
2021-10-26_17_21_50_729rpm_0_maf_0.0.png (25.54 KiB) Viewed 3684 times
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

image.png
image.png (10.45 KiB) Viewed 3650 times
Need help locating TDC on this exhaust cam wheel.
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

https://github.com/rusefi/rusefi_documentation/tree/master/OEM-Docs/Honda/2003-element/digital

Sweet data: logic analyzer capture of all three position sensors while cranking with zero spark plugs, with three spark plugs and with four spark plugs.
sample.png
sample.png (4.8 KiB) Viewed 3579 times
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

VTC control which I believe is Honda speak for VVT does not work

I have intake cam postion pretty steady at steady RPM and change on accel/decel. I believe that intake position decoding is fine.

I have PID output changing from 10% to 90% on Proteus high side #2 and simply no response. What would be my next step to investigate this assuming electrical problem?

tune https://rusefi.com/online/view.php?msq=697
image.png
image.png (277.54 KiB) Viewed 3547 times
log https://rusefi.com/online/view.php?log=392
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
blundar
contributor
contributor
Posts: 141
Joined: Tue Jan 07, 2014 4:38 am
Location: Cincinnati, Ohio
Github Username: blundar
Slack: Dave B.
Contact:

Re: 2003 Honda Element

Post by blundar »

***VTEC*** / VTS is a high side drive. (variable lift / lock additional cam lobe to change profile / engage all 16 valves depending on implementation)

***VTC*** / VVT is low side drive AFAIK.
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

blundar wrote:
Sun Oct 31, 2021 5:17 pm
***VTC*** / VVT is low side drive AFAIK.
looks like those are both _same_. And same _high side_?
image.png
image.png (19.62 KiB) Viewed 3534 times
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

it works! I originally forgot to set output frequency, also needed more aggressive PID offset and P-factor

tune https://rusefi.com/online/view.php?msq=698
log https://rusefi.com/online/view.php?log=393
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 12800
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: 2003 Honda Element

Post by AndreyB »

Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
Post Reply