JapCarForum Cars, Cars, Cars! Help Topics - Submit Your Help For Other Members! IS200 EFI fuse problem

IS200 EFI fuse problem

IS200 EFI fuse problem

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Reinbou
Junior Member
7
21-10-2020, 11:53 AM
#1
Few hours ago my car died out while driving. I tried to start and startermotor runs normally but the car wont start. Next I checked fuses and found that EFIConfused fuse was burned. I put a spare fuse to the socket but it burned instantly when I turned engine electricity on. To make sure I repeated it with new fuse but burned again. Everything else with quick check looks fine to me. No broken wiring or anything. Only thing was the missing droning sound from petrolpump.

Anyone who could know anything about this?? Only thing what came to my mind is that petrolpump is somehow broken or jammed and short circuiting ... Wiser opinions? Smile

Thanks!
Reinbou
21-10-2020, 11:53 AM #1

Few hours ago my car died out while driving. I tried to start and startermotor runs normally but the car wont start. Next I checked fuses and found that EFIConfused fuse was burned. I put a spare fuse to the socket but it burned instantly when I turned engine electricity on. To make sure I repeated it with new fuse but burned again. Everything else with quick check looks fine to me. No broken wiring or anything. Only thing was the missing droning sound from petrolpump.

Anyone who could know anything about this?? Only thing what came to my mind is that petrolpump is somehow broken or jammed and short circuiting ... Wiser opinions? Smile

Thanks!

Sparkystav
Administrator
14,683
21-10-2020, 12:50 PM
#2
Could be the pump shorted, or the EFI relay broken, you'd need to poke about with a meter to find out

OutlawJapClub Admin Team
Sparkystav
21-10-2020, 12:50 PM #2

Could be the pump shorted, or the EFI relay broken, you'd need to poke about with a meter to find out


OutlawJapClub Admin Team

Reinbou
Junior Member
7
22-10-2020, 05:43 AM
#3
Yes. After gym I have to go and tear down rear seat and unplug fuelpump. I also found something written about EFI relay problems. Hope that it won't pop fuses after unplugging fuelpump. It needs to be replaced anyway because I'm working alongside with boostingproject. Hoping that someone could conjure me new stonger conrods Big Grin
Reinbou
22-10-2020, 05:43 AM #3

Yes. After gym I have to go and tear down rear seat and unplug fuelpump. I also found something written about EFI relay problems. Hope that it won't pop fuses after unplugging fuelpump. It needs to be replaced anyway because I'm working alongside with boostingproject. Hoping that someone could conjure me new stonger conrods Big Grin

Reinbou
Junior Member
7
22-10-2020, 10:25 AM
#4
Problem solved. Pump shorted. After unplugging pumps connector fuse didn't pop. Also put cables straight to pins from other battery and nothing happen. Now searcing new more powerfull pump. Are there something I should know when installing different kind?? Or should they work straight?
Reinbou
22-10-2020, 10:25 AM #4

Problem solved. Pump shorted. After unplugging pumps connector fuse didn't pop. Also put cables straight to pins from other battery and nothing happen. Now searcing new more powerfull pump. Are there something I should know when installing different kind?? Or should they work straight?

john wan
Posting Freak
890
22-10-2020, 11:54 AM
#5
They will work straight away might just need to fit the plug off the old one onto the new should come with instructions on how mine did
john wan
22-10-2020, 11:54 AM #5

They will work straight away might just need to fit the plug off the old one onto the new should come with instructions on how mine did

Sparkystav
Administrator
14,683
22-10-2020, 01:06 PM
#6
Think its a gss342 you need from walbro for a more powerful one

OutlawJapClub Admin Team
Sparkystav
22-10-2020, 01:06 PM #6

Think its a gss342 you need from walbro for a more powerful one


OutlawJapClub Admin Team

john wan
Posting Freak
890
22-10-2020, 01:14 PM
#7
The right one is in my build thread matey
john wan
22-10-2020, 01:14 PM #7

The right one is in my build thread matey

Reinbou
Junior Member
7
03-11-2020, 08:18 AM
#8
Pump wasn't shorted after all. Relay is also fine. It was faulty lambdawires that sometimes shorted cause exhaustpipe vibrating. Too many contacts with the ground cause low car and Japspeed catbacks improperly installed lambdasensor hole! Have to someday change sensorhole position when I have time. But new walbro 255 works fine Smile Little wrestling with installation cause it bigger pump but now its fitting okay. Now my car doesn't rev correctly to redline cause 310cc nozzles and no back lambda but those can be fixed in no time.
Reinbou
03-11-2020, 08:18 AM #8

Pump wasn't shorted after all. Relay is also fine. It was faulty lambdawires that sometimes shorted cause exhaustpipe vibrating. Too many contacts with the ground cause low car and Japspeed catbacks improperly installed lambdasensor hole! Have to someday change sensorhole position when I have time. But new walbro 255 works fine Smile Little wrestling with installation cause it bigger pump but now its fitting okay. Now my car doesn't rev correctly to redline cause 310cc nozzles and no back lambda but those can be fixed in no time.

Rabster
Posting Freak
10,234
03-11-2020, 10:28 AM
#9
glad you solved it Smile



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Rabster
03-11-2020, 10:28 AM #9

glad you solved it Smile




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john wan
Posting Freak
890
03-11-2020, 10:45 AM
#10
So what your saying is the lambda was moving about slightly in its hole an causing the lambda to not be grounded propperly? I pulled the signal wire out of bank2 and the cars not stutterd or run lean all week but ive had p0125 code pop up
john wan
03-11-2020, 10:45 AM #10

So what your saying is the lambda was moving about slightly in its hole an causing the lambda to not be grounded propperly? I pulled the signal wire out of bank2 and the cars not stutterd or run lean all week but ive had p0125 code pop up

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