 Injector flow test FAIL ?, Troubleshooting lean condition |
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| jim-c |
 Jan 9 2022, 07:32 PM
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#21
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Newbie  Group: Members Posts: 20 Joined: 21-November 21 From: Fort Lauderdale Member No.: 26,090 Region Association: South East States  |
Im working on my recent 914 purchase. 2.0L engine. D-Jet ECU . Intially the engine would fire right up and idle smooth at 1000 rpm. Unfortunately it didn’t want to rev above idle. I could quick pump the throttle and get it to rev but it was undrivable.
I have an AFR gauge and it shows dead lean when i try to rev. I did a flow test on two injectors ( all 4 are new ) . I have 28lbs of FP . Full throttle and crank for 15 seconds yields 2cc per injector. Supposed to be 7 ish. Any ideas ? Nice new harness, MPS holds vacuum and has correct impedance readings. The balance of sensors check out okay with test procedure. Fuel pump holds 28 lbs steady and pumped a quart of gas within 30 seconds . |
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Posts in this topic
jim-c Injector flow test FAIL ? Jan 9 2022, 07:32 PM
JeffBowlsby Do you mean resistance, or inductance? Has the MP... Jan 9 2022, 09:37 PM
jim-c
Do you mean resistance, or inductance? Has the M... Jan 9 2022, 09:52 PM JeffBowlsby Too many variables here now. An adjusted MPS, new... Jan 9 2022, 11:45 PM emerygt350 Since you have a 123 and the MPS really can be out... Jan 10 2022, 05:56 AM jim-c
Since you have a 123 and the MPS really can be ou... Jan 10 2022, 10:51 AM rjames
Since you have a 123 and the MPS really can be o... Jan 10 2022, 11:39 AM jim-c Thanks for the replies.
I flow tested all 4 inje... Jan 10 2022, 09:21 AM emerygt350 It's a super easy rebuild. I think I got mine... Jan 10 2022, 12:00 PM emerygt350
It's a super easy rebuild. I think I got min... Jan 10 2022, 12:03 PM JeffBowlsby I am struggling to understand the low fuel flow an... Jan 10 2022, 12:07 PM jim-c
I am struggling to understand the low fuel flow a... Jan 10 2022, 12:36 PM rhodyguy The fuel sock lives in the bottom of the tank. If ... Jan 10 2022, 12:45 PM rjames
The fuel sock lives in the bottom of the tank. If... Jan 10 2022, 12:54 PM jim-c
The fuel sock lives in the bottom of the tank. If... Jan 11 2022, 10:55 AM 914Mels
Im working on my recent 914 purchase. 2.0L engine... Jan 10 2022, 01:31 PM jim-c Is the manifold pressure sensor hose clear? Are yo... Jan 11 2022, 10:57 AM jim-c Progress update .
Tank sock filter was vertical. ... Jan 14 2022, 11:42 AM emerygt350
Progress update .
Tank sock filter was vertical.... Jan 14 2022, 01:35 PM 914sgofast2 Low idle vacuum is likely a timing problem or undi... Jan 14 2022, 08:03 PM emerygt350
Low idle vacuum is likely a timing problem or und... Jan 14 2022, 08:42 PM jim-c Here’s an update /solution for my problem. I pul... Jan 16 2022, 05:54 PM StarBear
Here’s an update /solution for my problem. I pu... Jan 16 2022, 06:01 PM emerygt350 That is great. Post the link for the tester! Jan 16 2022, 06:22 PM  |
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