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4jh1 I.p. losing prime.

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4jh1 I.p. losing prime.

Postby zacco » Fri Feb 07, 2020 2:31 pm

Hi blokes, just bought a 2002 f2f 4jh1. Drove it home. Had it parked up for a few days and now won't start. Primer pump was useless so I put in an outboard primer bulb, this works well. I have fuel to the injector pump but nothing coming out of the injector lines when I crack them while cranking. Used to 4jb1t, this electrickery is new to me. Any ideas?
Cheers, zacco
1989 2wd rodeo4ze1 soon to be 2.8 T/d auto,manual whatever
zacco
Isuzu Junior
 
Posts: 76
Joined: Tue Jul 16, 2013 6:52 am
Age: 61
Country: Australia
City: kuranda
Vehicle: 1991 Isuzu 2.8 t/d,
Mods , holden badges removed, tweaked fuel pump
1991 rodeo d/cab 4ZE1 auto , the horror , the horror !

Re: 4jh1 I.p. losing prime.

Postby zacco » Fri Feb 07, 2020 2:32 pm

2002 tf rodeo.
1989 2wd rodeo4ze1 soon to be 2.8 T/d auto,manual whatever
zacco
Isuzu Junior
 
Posts: 76
Joined: Tue Jul 16, 2013 6:52 am
Age: 61
Country: Australia
City: kuranda
Vehicle: 1991 Isuzu 2.8 t/d,
Mods , holden badges removed, tweaked fuel pump
1991 rodeo d/cab 4ZE1 auto , the horror , the horror !

Re: 4jh1 I.p. losing prime.

Postby isuzurob » Fri Feb 07, 2020 6:42 pm

I would say the circuit board on the top has melted, is a very common issue with them, can cut the top off the ecu and re solder it back together
isuzurob
Global Moderator
 
Posts: 1730
Joined: Mon Jun 07, 2010 6:12 pm
Age: 25
Country: New Zealand
City: Taupo
Vehicle: 1990 Isuzu Bighorn 2.8t/d, 3" extended shackles, 2" body lift, 33" silverstone extreme tyres, Front+rear bars, winch with 40m dyneex rope, 21/2 inch exhaust, lokka's front+rear, custom turbo, emissions removed, injector pump modified and more

Re: 4jh1 I.p. losing prime.

Postby zacco » Sat Mar 14, 2020 5:23 am

Followed someone's advice from here. Whacked the primer plunger a couple of times and it started working properly. Dirt stuck in non return valve on plunger. All sorted.
1989 2wd rodeo4ze1 soon to be 2.8 T/d auto,manual whatever
zacco
Isuzu Junior
 
Posts: 76
Joined: Tue Jul 16, 2013 6:52 am
Age: 61
Country: Australia
City: kuranda
Vehicle: 1991 Isuzu 2.8 t/d,
Mods , holden badges removed, tweaked fuel pump
1991 rodeo d/cab 4ZE1 auto , the horror , the horror !


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