 Trouble shooting injectors |
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| LanceW3544 |
 Jul 29 2018, 02:38 PM
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#1
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Newbie  Group: Members Posts: 13 Joined: 25-July 18 From: Grand Rapids Mi Member No.: 22,337 Region Association: None  |
First of all forgive my lack of knowledge. I am not new to cars but I am new to 914s. I recently purchased a 1970 914 1.7L. with D. Jet. The previous owner noted that it ran last year but was not able to get running this year. The car is far from perfect but I hope to be a solid start for a EJ20 swap in the next year or so. I would love to get the 1.7 fired up to start taking care of of other issues I am not currently aware of.
So let me start discribing what I am seeing Good Battery- Cranks over good and for a long time if needed Fuel Pump- working well but does not shut off after 1-2 seconds. New plugs New wires New cap and rotor I check the fuel rail and I know I have fuel to the injectors. I am able to fire the car up with starter fluid but ofcourse dies when it is burned off. I have had it runnig several times but is not consistant. I have check the grounds to the batter as well as the injector grounds. I don't know where to go next. Any advice would be appreciated. As you explain your suggestion please don't use abbrevations as I am not framilar with them all yet. Thanks -lance |
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| Bartlett 914 |
Jul 29 2018, 05:31 PM
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#2
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Advanced Member Group: Members Posts: 2,218 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
plugged injectors or bad gas.
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| worn |
Jul 29 2018, 05:35 PM
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#3
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Winner of the Utah Twisted Joint Award Group: Members Posts: 3,560 Joined: 3-June 11 From: Madison, WI and North Bend WA Member No.: 13,152 Region Association: Upper MidWest 
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QUOTE(Bartlett 914 @ Jul 29 2018, 03:31 PM)  plugged injectors or bad gas. Bad gas, fuel pressure regulator not working, bad manifold pressure sensor, cylinder head sensor for temp, vacuum leaks. That would be my hit parade. |
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Posts in this topic
LanceW3544 Trouble shooting injectors Jul 29 2018, 02:38 PM
mepstein I send all our injectors to mr injector. Even if t... Jul 29 2018, 03:25 PM Tbrown4x4 What is your fuel pressure? Stock pump?
Check the... Jul 29 2018, 04:10 PM Porschef Really? Grand Rapids?
Hmmmm, :idea: there might... Jul 29 2018, 04:38 PM LanceW3544 Thank you everyone for your quick response. I am v... Jul 29 2018, 07:21 PM Freezin 914
Really? Grand Rapids?
Hmmmm, :idea: there migh... Jul 29 2018, 08:07 PM Mark Henry Down and dirty way to check on injectors is to rem... Jul 29 2018, 09:07 PM 914 RZ-1 I hooked a 9v battery up to the injectors to see i... Jul 29 2018, 09:52 PM Dave_Darling Your engine needs three things to run: Fuel, air, ... Jul 29 2018, 10:11 PM Chris914n6 Unplug the coil - don't want any sparks for th... Jul 30 2018, 04:02 AM Bartlett 914 So it runs with starter fluid. That speaks a lot. ... Jul 30 2018, 05:05 AM jonferns Cruzin Performance is in Traverse City, MI. Just s... Jul 30 2018, 05:54 AM LanceW3544 Jonferns- How much do they charge for the injecto... Jul 30 2018, 03:51 PM
brant
Jonferns- How much do they charge for the inject... Jul 30 2018, 04:08 PM
jonferns
Jonferns- How much do they charge for the inject... Jul 30 2018, 04:57 PM LanceW3544 pull all 4 injectors and none of them are spraying... Jul 30 2018, 05:27 PM Dave_Darling Still could be an unplugged MPS, or a set of unplu... Jul 30 2018, 03:57 PM LanceW3544 I created all new grounds for the white injectors ... Jul 30 2018, 04:15 PM Dave_Darling Do you have a "noid light"? Or some oth... Jul 31 2018, 10:22 AM Chris914n6 Next step is to trigger the injectors manually und... Jul 31 2018, 03:42 PM LanceW3544 I was able to manual test the injectors. Directly... Jul 31 2018, 05:56 PM Chris914n6 Most likely injector trigger.
https://members.re... Jul 31 2018, 07:38 PM Dave_Darling Again, check all of the wires and hoses to make su... Jul 31 2018, 09:11 PM LanceW3544
Again, check all of the wires and hoses to make s... Aug 1 2018, 05:42 AM Dave_Darling
What else should I be checking?
Make sure those... Aug 1 2018, 09:36 AM mgphoto Pump keeps running after the 2 second interval mea... Aug 1 2018, 09:01 AM LanceW3544
Pump keeps running after the 2 second interval me... Aug 1 2018, 09:17 AM mgphoto
Pump keeps running after the 2 second interval m... Aug 1 2018, 09:27 AM LanceW3544 pulled all the relays which I have done before and... Aug 2 2018, 03:21 PM Bartlett 914
pulled all the relays which I have done before an... Aug 2 2018, 04:28 PM Chris914n6 Sounds like common corrosion. Give all the connect... Aug 2 2018, 03:39 PM The Cabinetmaker One of those relays powers the injection system. T... Aug 4 2018, 12:26 PM |
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