 its almost running, but i need some help-72 1.7L |
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| A TV dinner |
 Apr 9 2007, 01:35 AM
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#1
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Newbie  Group: Members Posts: 30 Joined: 13-July 06 From: fresno california Member No.: 6,422  |
hello there. just put a 1.7L motor into my car a fews days ago and installed all of the Djet parts. i have 4 new injectors, a rebuilt fuel pump. when i go to start the car, shell tun over and run for about 5 seconds, but then will die. the only way i can keep it running is to rapidly push the gas pedal, and then the engine wants to idle up to about 4000rpm and then jump back down to where it almost dies again.
is this a computer or MPS problem? (IMG:style_emoticons/default/idea.gif) the timing SEEMS to be ok but im not sure thanks ~alex~ |
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Replies(1 - 5)
| McMark |
Apr 9 2007, 02:32 AM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
I would check fuel pressure to make sure that is correct. You also may have hooked the fuel pressure regulator up backwards.
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| swl |
Apr 9 2007, 09:05 AM
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#3
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Senior Member Group: Members Posts: 1,409 Joined: 7-August 05 From: Kingston,On,Canada Member No.: 4,550 Region Association: Canada |
trigger points?
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| bd1308 |
Apr 9 2007, 10:47 AM
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#4
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
lol (sorry, ive been there....ah the memories)
*Fuel Pressure *Timing *Blown MPS *Cold Start Valve and finally........... *Vacuum Leaks. |
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| BMXerror |
Apr 9 2007, 12:07 PM
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#5
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Senior Member Group: Members Posts: 1,705 Joined: 8-April 06 From: Hesperia Ca Member No.: 5,842 |
QUOTE(bd1308 @ Apr 9 2007, 09:47 AM)  lol (sorry, ive been there....ah the memories) *Fuel Pressure *Timing *Blown MPS *Cold Start Valve and finally........... *Vacuum Leaks. (IMG:style_emoticons/default/agree.gif) Except I would check manifold vacuum before the MPS and CSV because low manifold vacuum will give the MPS a bad reading and it will meter too much fuel. That way you can replace either one and it won't do a damn thing. Of course, if you can't get it to idle, checking manifold vacuum could prove tricky. Is it running at 4K by itself before dying out, or is that where you have to put the throttle for it to run? I.E. does it die out as soon as you let off the throttle? Is it running rich, or just wandering? Like with any other engine diagnosis, make sure you have the four basics; air, fuel, ignition, and timing, and be positive you have everything hooked up right BEFORE you start replacing parts. I learned the hard way. (IMG:style_emoticons/default/biggrin.gif) Mark D. |
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| BMXerror |
Apr 10 2007, 05:21 PM
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#6
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Senior Member Group: Members Posts: 1,705 Joined: 8-April 06 From: Hesperia Ca Member No.: 5,842 |
well, did ya figure it out?
Mark D. |
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