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timitaoe
User
Jul 15, 2013, 4:31 PM
Post #1 of 15
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1992 jimmy fuel problems
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i have a 1992 gmc jimmy. it is not getting fuel. i put a new pump and filter on it. it is getting well over 60psi according to my guages. i can put gas in the intake and it will fire up. i just got done taking the plenum off and i took off the fuel line going to the spider it is getting gas there. and there is power going to the plug ontop of the spider. does this mean my spider is bad or is there something else i can check too.
any help would be appriciated. tim.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 15, 2013, 4:45 PM
Post #2 of 15
(2397 views)
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Re: 1992 jimmy fuel problems
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You will have to tap into the injector wiring and use a noid light to test for injector pulse.
Check all you fuses first using a test light.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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timitaoe
User
Jul 15, 2013, 5:10 PM
Post #3 of 15
(2386 views)
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Re: 1992 jimmy fuel problems
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i have tested all the fuses and there is power everywhere there should be. i do not have a noid light, is there anything else i can check a "pulse" with? (and just out of curiosity is it an alernating 6-12 volt "pulse" like some of the jeeps do?)
there is a plug on the top of the injection spider (the only wires going inside the plenum) and i checked it with the testlight and it is getting power there.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 15, 2013, 5:23 PM
Post #4 of 15
(2369 views)
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Re: 1992 jimmy fuel problems
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No, you can't use anything else. You can burn out the computer using an incandescent bulb. You can buy a noid light for under $10 at many parts stores.
No one uses a 6/12v to fire injectors.
There is a constant 12 volt on the PK/BK wire and the computer pulses the ground on the DK BLUE wire. When a noid light is connected between the 2, it should flash when cranking.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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timitaoe
User
Jul 15, 2013, 5:30 PM
Post #5 of 15
(2363 views)
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Re: 1992 jimmy fuel problems
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ok thx for the help. ill try to get a noid light after work tomorrow.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 15, 2013, 5:33 PM
Post #6 of 15
(2358 views)
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Re: 1992 jimmy fuel problems
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If you can't find one, look for a test light that uses an LED light instead of incandescent bulb.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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timitaoe
User
Jul 19, 2013, 1:56 PM
Post #7 of 15
(2291 views)
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Re: 1992 jimmy fuel problems
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ok so i went and got a brand new noid light set and hooked it up. and well it is blinking. so it is what i fearded the spider?
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 19, 2013, 2:36 PM
Post #8 of 15
(2280 views)
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Re: 1992 jimmy fuel problems
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Which 2 wires were you using? Colors?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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timitaoe
User
Jul 19, 2013, 2:55 PM
Post #9 of 15
(2278 views)
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Re: 1992 jimmy fuel problems
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the only 2 goin into the plenum to the injector red and a blueish i think its blue its a bit fadded plug looks like this.
http://thumbs1.ebaystatic.com/d/l225/m/mKBL-Wbbw0JKQgtOzpRoTaw.jpg
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 19, 2013, 3:24 PM
Post #10 of 15
(2273 views)
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Re: 1992 jimmy fuel problems
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You should be going between a pink with black tracer and a dark blue.
Did you just plug your light into a plug like that?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Jul 19, 2013, 3:25 PM)
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timitaoe
User
Jul 19, 2013, 3:28 PM
Post #11 of 15
(2270 views)
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Re: 1992 jimmy fuel problems
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yep. its the only plug with the hookup that fits noid light. it is a pinkcish red i dont see a tracer. and a blue.
edit. the noid light i used was the one on the right in your pifture.
the plug i pluged it into was this one
http://powerreviews.s3.amazonaws.com/images_customers/06/89/31904784_241506_full.jpg
its not my engine but same thing i got. pluged it into the plug on the injector. sry for the links i cant figure out pictures on here.
(This post was edited by timitaoe on Jul 19, 2013, 3:33 PM)
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 19, 2013, 3:30 PM
Post #12 of 15
(2266 views)
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Re: 1992 jimmy fuel problems
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Well, yes it does sound like a bad injector then.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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timitaoe
User
Jul 19, 2013, 3:35 PM
Post #13 of 15
(2264 views)
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Re: 1992 jimmy fuel problems
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thx for the help bro. ill be seeing ya round.
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timitaoe
User
Jul 26, 2013, 7:00 PM
Post #14 of 15
(2229 views)
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Re: 1992 jimmy fuel problems
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i finaly scavenged the money to buy the stuff i needed. put the new spider and plenum gasket on... fired right up.. thx for the advice again. and if anyone else has this problem everywhere i looked around my area the spider injector costed around $300+ i found on ebay for $128.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 27, 2013, 2:39 AM
Post #15 of 15
(2212 views)
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Re: 1992 jimmy fuel problems
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Buying parts on E-bay may save some money sometimes but it does have it's risks and inconveniences.
Glad you got it resolved. I'm going to close this thread now to keep the spammers out. It can be reopened upon request to a Mod.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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