Yamae

Thanks for the report, Mac2.
Do you know the reason why you had similar problems?
Too much ripples at the DC5V confuses processors when capacitors are deteriorated.
Too low battery voltage can't supply a stable DC5V to processors and those are confused.

oldradio

I have EUROPE LEXUS LS400UCF20 UCF20L-AEPGKW 1UZFE 10.1994
ECU 89661-50250
I need "1993-94 LS400 needs 8 caps as follows:" or "1995-97 LS400 needs 6 caps as follows:" ??

Thanks!

peter079

Just joined this forum. I own a 1993 Camry 2.2. For about a year now it has a very bad idle and hesitation when cold. Improves when car is warm. Definitely have noticed less power and high fuel consumption.
Engine is very good. Compressions excellent, good sparks. Starts every time, but after about a minute, rpm drops to almost stalling and hesitation on acceleration.
I have changed temperature sensor, oxygen sensor, MAP sensor, ignition coil, spark plugs, leads, cleaned idle control valve, checked throttle position sensor, cleaned EGR, cleaned all terminals and earth points, spent at least 10 hours probing everything.
As a last resort I was going to fork out money for a ECU. But then I found this site and decided to remove ECU and check.
What do you know..... I found leaking Capacitors everywhere, just like in the photos on page1. I will attempt to repair and post pictures soon.

I found a youtube video of a camry that is doing EXACTLY what my camry does.

peter079

I went ahead and changed out the two(2) leaky capacitors that I found on the ECU. They were Michicon (PF) 47uF 63v (Brown) Capacitors. The other 4 look to be a different brand and show no leakage. Due to my limited capacitor knowledge and soldering skills, I decided to leave these for now.
Anyway I can confirm that the car IS NOW FIXED!!! NO more bad idle. NO more hesitation on acceleration. I can't believe the difference. There is a definite increase in low end power.
Lately the car has been very sluggish which I put down to the engine getting old. But now it is back to how it was when I bought it.
I am hoping that fuel economy will improve as well.

Instigat0r

Hi ClubLexus,

Firstly, thank you for the great thread!

I've just picked up a 1990 model LS400 and am trying to put my cap order together.

The 2x differnet 10μF ones listed in the OP have a really long wait time (almost 3 months).

I want to order them all from the same place and get them ASAP.

I wasn't able to find any that had the exact same specifications. Is there a good alternative I can order or do I have to wait 3 months?

http://www.digikey.com/product-searc...20%25%20RADIAL

Yamae

Thanks for the report peter079 and congratulations on your success to fix your Camry.

As I wrote at the post #8, Nichicon PF(M) capacitors tend to leak when aged and cause serious problems. The quaternary ammonium salt was said to be one of the best electrolytes when it was released. But soon it was found not easy to use for long time.

Yamae

See posts #132 and 133.

peter079

Thanks Yamae.
I tried to post a few photos but this site won't allow me to, for some reason.
Anyway, I posted a few photos on another site called Badcaps.net

Here is a link,
http://www.badcaps.net/forum/showthr...715#post504715

You may need to be a member to see photos though?

Instigat0r

First link estimated shipping date is 2/17/2015, 2nd link is 13 week lead time.

Post #132 & #133:

Please excuse my ignorance but I'm still not sure what I'm looking at/for.

I've tried entering the same search criteria on Digikey and it only brings up the first link above for the Chemi-Con EKZE500ELL100ME07D,

Which one from either of those charts should I look for? BXC-124?

Yamae

Mouser says, "Can ship Immediately". See below.
http://www.mouser.jp/ProductDetail/U...HcbyYo5g%3d%3d

GISguy

Anyone have a list of exactly the capacitors I would need for a '95 SC3? And a link to where to buy them?

Instigat0r

Wow, not sure how I missed that. Thanks Yamae!

Mac2

As far as I could tell before the alternator completely stopped charging, the motor oil that leaked into the alternator began to intermittently cause short circuits within the electrical system of the car.

oldradio

Lexus LS400 UCF20 1994-1997 EUR has ECU partnumber 89661-50250
in which I found 9 caps:

1. C101 10uf 50v
2. C102 10uf 50v
3. C120 100uf 10v
4. C121 100uf 10v
5. C141 220uf 16v
6. C804 15uf 35v
7. C805 15uf 35v
8. C781 47uf 63v
9. C831 47uf 63v

3foreign

I am very proud to be a Lexus owner mainly because of this forum and guys like you and Yamae who have dedicated alot of time to help those in need. I recent got the caps replaced in my 94 ls and just recently purchased a 95 ls and I will get the caps replaced in it soon. Thanks to all the support on CL!