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Re: Replace your ECU Capacitors or your car will explode. Srsly

383mazda
Junior Member
860/1000

posted 10/22/15 05:52 PM Remind Me!

I purchased the replacement caps and they are physically much smaller, is this normal?

The "Digi-Key PN links" are broken on the How-To site, so I tried to find the closest ones they had:

22uF 50V: P5568-ND (mfg PN: ECA-1HHG220)

100uF 25V: P5540-ND (mfg PN: ECA-1EHG101)

47uF 50V: P5570-ND (mfg PN: ECA-1HHG470)

Have caps just gotten smaller in the past 20 years, lol??

Caps on my board are in good shape though so I'll wait to swap them.

Thanks for help!

Posts: 61 | From: Gainesville, TEXAS | Member Since: 10/10/15 | IP: (74.197.187.87) | Report this post to a Moderator

fuel
"Just to be pedantic!"

posted 10/22/15 05:54 PM Remind Me!

Yes, much like how computer processors and hard drives have got physically smaller in time capacitors too have shrunken. Always make sure you retain the correct capacitance, but if the exact voltage is not available you can safely substitute in higher voltage units.

'91 E39A Galant VR-4 Evolution | '80 A164A Eterna GSR Turbo

-- Visit my JDM Galant VR-4 info & specifications site here! --

Posts: 2115 | From: Toronto, ON, Canada | Member Since: 02/23/09 | IP: (165.225.98.94) | Report this post to a Moderator

FlyingEagle
Eager Beaver

posted 10/22/15 08:23 PM Remind Me!

Quoting 383mazda:

Caps on my board are in good shape though so I'll wait to swap them.

They HAVE to be swapped out, period. Do not wait. This is the only advice you can accept for this era ECU/TCU.

Do it, forget about it and never look back. They can and will leave you stranded otherwise.

C53A 1 of the ~1500

Posts: 1605 | From: THE Ottawa | Member Since: 03/05/05 | IP: (99.241.194.85) | Report this post to a Moderator

383mazda
Junior Member
860/1000

posted 10/23/15 12:10 PM Remind Me!

I only meant I'd wait until I got a reply or found the correct caps - turns out what I have will work, so I'll be swapping them this weekend

Thanks for help guys!

Wife's car: 2004 Subaru Forester XT
My car: 1992 GVR4 #860/1000
Let the battle begin!!!

Posts: 61 | From: Gainesville, TEXAS | Member Since: 10/10/15 | IP: (66.87.97.251) | Report this post to a Moderator

FlyingEagle
Eager Beaver

posted 10/23/15 07:22 PM Remind Me!

All good, we love the friendly nudge over here.

C53A 1 of the ~1500

Posts: 1605 | From: THE Ottawa | Member Since: 03/05/05 | IP: (99.241.194.85) | Report this post to a Moderator

Jvimpty
Newbie
862/1000

posted 07/07/16 03:15 PM Remind Me!

I did this last weekend while changing out a heater core. Ordered parts from Mouser:

Part numbers and links here:

1
RoHS: Compliant1
667-ECA-1EHG101
ECA-1EHG101
100uF 25V
click

2
RoHS: Compliant1
667-ECA-1HHG220
ECA-1HHG220
22uF 50V
click

3
RoHS: Compliant1
667-ECA-1HHG470
ECA-1HHG470
47uF 50V
click

In case folks wanted another source, some of the links in previous posts had gone dead.

Jeremy

Posts: 24 | From: State College, PA | Member Since: 10/30/15 | IP: (71.58.110.221) | Report this post to a Moderator

rada974
Newbie

posted 02/13/17 07:37 PM Remind Me!

Hi, Today I opened the ECU and despite seeing the capacitors well I am in the doubt that the 100 uf is 16v and not 25v as you indicate, so I see the previous owner took the ecu to the service. I leave that capacitor or change it by what you indicate?

Regards

Posts: 1 | From: Caracas, Venezuela | Member Since: 10/12/15 | IP: (201.248.11.4) | Report this post to a Moderator

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