Trouble shooting injectors |
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Trouble shooting injectors |
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 |
Dave_Darling |
Jul 31 2018, 09:11 PM
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#2
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914 Idiot Group: Members Posts: 15,048 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Again, check all of the wires and hoses to make sure they are plugged in.
--DD |
LanceW3544 |
Aug 1 2018, 05:42 AM
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#3
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Newbie Group: Members Posts: 13 Joined: 25-July 18 From: Grand Rapids Mi Member No.: 22,337 Region Association: None |
Again, check all of the wires and hoses to make sure they are plugged in. --DD Thanks for the reminder Dave. (IMG:style_emoticons/default/smile.gif) I believe that I do have them all plugged in but lets go step by step and make sure. Here I image one is the back of the Dizzy which should have a plug with three wires Here are the grounds for the injectors. I was fearful of their connections So I have made them a new ground here. Here is an image of the intake pipe which has a vacuum line that runs over the piece that connects to the Dizzy. Then the last picture is to the hand grenade looking thing that attaches to the passenger rear fender wall. What else should I be checking? |
Dave_Darling |
Aug 1 2018, 09:36 AM
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#4
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914 Idiot Group: Members Posts: 15,048 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
What else should I be checking? Make sure those are plugged in solidly. Check the CHT connector. It's near the #3 spark plug; a single wire comes out of the engine tin and goes into a plastic box connector. Sometimes the connection gets broken but the wires still go into the box. Do you know if the ECU is getting power? You can remove the ECU and check its connector for power on the correct pins. You could also turn the key on and then grab the throttle and open it. If you hear the injectors click (it will be about 10 times), then you know the ECU has power and can send it to the injectors. If you don't hear them click, it's not definite that the ECU isn't getting power, but it shows something isn't allowing the injectors to open at all... --DD |
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