 Fuel Injector Going Bad?, FIXED - Thanks 914 World! |
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| saigon71 |
 Jun 10 2015, 07:32 PM
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Advanced Member  Group: Members Posts: 2,020 Joined: 1-June 09 From: Dillsburg, PA Member No.: 10,428 Region Association: MidAtlantic Region 
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74 2.0 D-Jet. Car is in a fine state of tune. Verified fuel pressure at 30 PSI. Removed distributor, cleaned & lubed advance plates and tested vacuum canister. Verified TPS is set correctly. MPS tested fine. ORIGINAL fuel injection harness. I went around the engine bay today and re-seated all FI related connections. The injectors are in unknown condition - came with the car.
This is different than the bucking I used to experience. I intermittently have a cylinder drop off. It happens at all speeds, but is really noticeable at idle. I had it running for a while in my driveway tonight and the exhaust fumes spelled especially "gassy." When it's not missing, it runs fantastic and idles perfectly. I think I have a fuel injector going bad. Can they fail intermittently? Anyone else experience something like this? I figured I would just pull all four injectors, run the fuel pump and measure the fuel...but I'm not sure I could find the faulty one if it functions correctly during the test. Pretty boring video (IMG:style_emoticons/default/dry.gif) Engine starts running rough intermittently at :40 (engine bay sound) and 2:07 exhaust. https://www.youtube.com/watch?v=xQoMS-NeOag...eature=youtu.be Any advice is appreciated. |
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| mepstein |
Jun 10 2015, 08:07 PM
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914-6 GT in waiting Group: Members Posts: 20,587 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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If the injectors have never been cleaned, consider sending them to mr injector. $16 each and they come back looking like new and flow tested. Fast turn around too.
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| Cj Honeycutt |
Jun 12 2015, 06:59 PM
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#3
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Member Group: Members Posts: 50 Joined: 7-August 10 From: Fallbrook, CA Member No.: 12,020 Region Association: Southern California |
QUOTE(mepstein @ Jun 10 2015, 07:07 PM)  If the injectors have never been cleaned, consider sending them to mr injector. $16 each and they come back looking like new and flow tested. Fast turn around too. Who is "Mr. Injector" and how do I get in contact ? |
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Posts in this topic
saigon71 Fuel Injector Going Bad? Jun 10 2015, 07:32 PM
Mblizzard I would suggest disconnecting the injectors one at... Jun 10 2015, 07:46 PM Mark Henry The quick and dirty is to remove the wire one inje... Jun 11 2015, 05:30 AM jim_hoyland Connections /connectors at the injectors was a pro... Jun 11 2015, 06:09 AM Philip W. i had a similar issue with my75 d-jet and thought ... Jun 11 2015, 06:45 AM r_towle I have had the following.
Loose electrical connec... Jun 11 2015, 06:54 AM r_towle duplicate Jun 11 2015, 06:54 AM dlee6204
[quote name='mepstein' post='2197405' date='Jun 1... Jun 12 2015, 07:42 PM
mepstein
[quote name='mepstein' post='2197405' date='Jun ... Jun 12 2015, 07:54 PM kertwerks Group,
I've used the original bosch dizzy and... Jun 14 2015, 09:57 PM saigon71 Thanks for the responses. The trigger points were... Jun 15 2015, 06:15 AM mepstein Use a $6 usps priority box and you might have... Jun 15 2015, 06:40 AM dlee6204 I've used Mr. Injector several times for a cou... Jun 15 2015, 07:45 AM saigon71 I believe I have eliminated everything but the ECU... Jun 28 2015, 02:24 PM BeatNavy Hey Bob - sorry to hear you're still chasing t... Jun 28 2015, 03:34 PM mepstein I'll ship you the ecu and harness from my ... Jun 28 2015, 03:59 PM saigon71
I'll ship you the ecu and harness from my ... Jun 28 2015, 09:18 PM Ian Stott When you tested your fuel pressure and you said it... Jun 28 2015, 04:53 PM BeatNavy
When you tested your fuel pressure and you said i... Jun 28 2015, 05:05 PM saigon71
When you tested your fuel pressure and you said ... Jun 28 2015, 09:14 PM 914Mels Another possible problem would be the trigger poin... Jun 29 2015, 02:37 PM saigon71 Well, the problem is fixed!
I filled up the... Jul 8 2015, 07:33 PM Philip W.
Well, the problem is fixed!
I filled up th... Jul 8 2015, 07:59 PM Jeff Bowlsby Great News Bob! Glad it worked out for you an... Jul 8 2015, 08:44 PM |
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