Subject	Did an injector pulse test to roughly measure flow
Posted by	Agent X on February 02, 2023 at 2:19 PM
	This message has been viewed 137 times.
In Reply To	Re: Fuel in oil posted by Zxpress on January 29, 2023 at 04:49 PM
Message	I was watching this video from Pine Hollow Diagnostics (https://www.youtube.com/watch?v=0TiAciUSMRE) and at about 10:12 he does an injector pulse test to measure pressure before and after pulsing each injector. Picked up a similar device and tested the injectors like he does in the video. Pulled the fuel rail and set it over a disposable aluminum pan to keep from dumping gas in the motor. Small variations, but nothing that seems to indicate a big problem. (Fractions of a psi are guestimates based on needle position on gauge) Inj #1 Start: 66psi, End 29.5 Inj #2 Start: 66, End 29 Inj #3 Start: 66, End 29.5 Inj #4 Start: 66, End 29 Inj #5 Start: 66, End 28.8 Inj #6 Start: 66, End 29.75 -------------------------------------------------------------- ---------------------- Conversation between my sister and my wife (shortly before we got married): Wife: "You know, sometimes I think he loves that Z more than he does me." Sister: "He probably does, and as long as you're okay with that, everything will be fine."
Follow Ups	Fuel in oil - Agent X 12:59:54 01/26/23 additional info - Agent X 15:07:38 01/26/23 Fuel pressure regulator bad sucking raw fuel possibly. - mrchips 07:45:02 01/27/23 It was replaced due to age, but no sign of leak - Agent X 08:40:52 01/27/23 Carbon Canister Vac Line? (n/m) - Cjw3 18:48:12 01/26/23 Wouldn't that cause a lean condition? - Agent X 20:36:22 01/26/23 A flooded Carbon Canister will be rich - Cjw3 10:55:52 01/27/23 CC was deleted years ago, but that would make sense (n/m) - Agent X 11:00:49 01/27/23 It sure sounds like... - Denis 19:34:10 01/27/23 I'm afraid it could be the tune, and I can't check it - Agent X 20:23:49 01/27/23 Shoot Seb at SZ an email and see if he has suggestions - Denis 16:34:18 01/28/23 Got response- went to spam folder - Agent X 08:47:46 02/06/23 If your tuner did not account for the 740's properly then - Denis 11:40:57 02/09/23 He supposedly did a tune on his dyno (attached) - Agent X 12:12:01 02/09/23 Others on this site are more experienced in tracking AFR - Denis 12:55:18 02/10/23 If you are at the point you want to try another program - Denis 16:27:39 02/10/23 Re: Fuel in oil - Zxpress 16:49:19 01/29/23 Did an injector pulse test to roughly measure flow - Agent X 14:19:49 02/02/23 What injectors did you install? - Doug71zt(CAN) 09:38:27 01/30/23 Nismo 740cc (new) - Agent X 10:06:59 01/30/23
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