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Hi, guys i’m Assim from Middle East glad to be with you and I really want some help with my ls400 95
I changed all 6 caps in the ecu after that the obd2 works again shown the code P0100 and P0110 I checked the voltage in the maf sensor 11.35v then I checked the MAF sensor was at idle 3.83 g/s and the voltage between terminal VG and ground 1.183v finally the resistance between EVG and ground 198 ohm. Any suggestions??
Hello,
I would like to share information about ECU 89661-50252, I found here 9 capacitors, I though I will find in my ECU 6 capacitors, because of the model year 1995, but I need to order more capacitors and replace them. I'm just decided to do the maintenance for my ECU, but all capacitors now looks fine.. Anybody know any information about this ECU? Does it has some fixed issues?
List of capacitors which I found:
10v 100μF x2
35v 15μF x2
50v 10μF x2
63v 47μF x2
16v 220μF x1
Hi, guys i’m Assim from Middle East glad to be with you and I really want some help with my ls400 95
I changed all 6 caps in the ecu after that the obd2 works again shown the code P0100 and P0110 I checked the voltage in the maf sensor 11.35v then I checked the MAF sensor was at idle 3.83 g/s and the voltage between terminal VG and ground 1.183v finally the resistance between EVG and ground 198 ohm. Any suggestions??
The voltage VG-E1 1.183V @ idle is too low. It should be min 2.0V.
I need some more information to suggest you further. Since you already know pin assignments and I ask you these below without explaining them.
1, What is the resistance value of the temperature sensor which can be measured between THA-E2. Does it behave as is shown in the chart below? You need to check the resistance at least 2 points of cool and hot like 2.5kohms @ 20 degrees C and 0.35kohms @ 60 degrees C.
2, How much is the read-out voltage of EVG-E1 at idle?
Hello,
I would like to share information about ECU 89661-50252, I found here 9 capacitors, I though I will find in my ECU 6 capacitors, because of the model year 1995, but I need to order more capacitors and replace them. I'm just decided to do the maintenance for my ECU, but all capacitors now looks fine.. Anybody know any information about this ECU? Does it has some fixed issues?
List of capacitors which I found:
10v 100μF x2
35v 15μF x2
50v 10μF x2
63v 47μF x2
16v 220μF x1
See the old posts #172-177 of the thread. The ECU is designed to meet regulations of each countries and the number of capacitors varies depending on the market. European models are not the same with USDM and your ECU is not OBD-II compatible.
Electrolytic capacitors can't be checked by human eyes, you know. The quickest way without removing capcitor to check is to use an ESR meter. The simplest way would be to measure the ripple level as is shown in the FAQ. I suggest you to replace all those 9 capacitors. You will be amazed at the better performance of the engine.
See the old posts #172-177 of the thread. The ECU is designed to meet regulations of each countries and the number of capacitors varies depending on the market. European models are not the same with USDM and your ECU is not OBD-II compatible.
Electrolytic capacitors can't be checked by human eyes, you know. The quickest way without removing capcitor to check is to use an ESR meter. The simplest way would be to measure the ripple level as is shown in the FAQ. I suggest you to replace all those 9 capacitors. You will be amazed at the better performance of the engine.
Thank you for the information Yamae, that's a bit sad about OBD-II.. I'll try to change all capacitors once I'll get them all. Also, I attached a video, I noticed that sometimes after accelerating until more than 2k revs my idle speed change to about 500rpm's, you can hear that at about 22-24 seconds in the video, but this happens just sometimes, I hope the capacitors will fix this.
Hi, I have a question, when I try to buy capacitors on the main menu they list different types of material, if someone can please guide me on the material needed thank thank you for this valuable info Yamae and Lscowboy you guys are life savers 🙏
below is the list of capacitors on digikey.com
The voltage VG-E1 1.183V @ idle is too low. It should be min 2.0V.
I need some more information to suggest you further. Since you already know pin assignments and I ask you these below without explaining them.
1, What is the resistance value of the temperature sensor which can be measured between THA-E2. Does it behave as is shown in the chart below? You need to check the resistance at least 2 points of cool and hot like 2.5kohms @ 20 degrees C and 0.35kohms @ 60 degrees C.
2, How much is the read-out voltage of EVG-E1 at idle?
no resistance 000.0 ohm THA-E2 and the voltage 1.39V
voltage 2.8mV EVG-E1
no resistance 000.0 ohm THA-E2 and the voltage 1.39V
voltage 2.8mV EVG-E1
Sounds like your's is shot. Both the temperature and the air flow value are out of range. The voltage EVG-E1 is too low too. It is usually around 500mV. That's why you have codes P0100 and P0110.
Sounds like your's is shot. Both the temperature and the air flow value are out of range. The voltage EVG-E1 is too low too. It is usually around 500mV. That's why you have codes P0100 and P0110.
Hi, I have a question, when I try to buy capacitors on the main menu they list different types of material, if someone can please guide me on the material needed thank thank you for this valuable info Yamae and Lscowboy you guys are life savers ��
below is the list of capacitors on digikey.com
I have written several times before about the capacitor's selection. You need to study a lot about the Bode plot and measure the actual circuit, if you want to use non recommended capacitors. Too low ESR capacitor often causes problems of stability or RF oscillation, you know. Without analysing the relationships between the phase and the gain of the error amplifier, the person would have very hard time to compensate.
Of course it would be nice if you were planning to use non recommended ones and inform us the result with the chart.
01-12-19, 12:02 PM
