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| Fuel injector; Need a bad one to test | |
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| Tweet Topic Started: Oct 20 2017, 11:08 PM (181 Views) | |
| freegeo | Oct 20 2017, 11:08 PM Post #1 |
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I'm starting this thread to see if there is anyone that may have a bad fuel injector that they may want to part with? I'm trying to set up a way to clean fuel injectors and test them. In another thread Mr1 Kingsbury posted this.
Not really a voltage test that can be done. I think there is a resistance check in the FSM. If I can find that value it can be checked. The thing i would want to be looking at most is the flow rate and spray pattern. I bought a cheap injector that looked to be just like the OEM bosch unit that comes in the throttle body. Once putting it in the cheap injector was letting in more fuel that the OEM one. My STFT (short term fuel trim) was buried -20 and the LTFT (long term fuel trim) was starting to correct the STFT. Mine didn't get as bad as Mr1 Kingsbury that it would set a code but it wasn't far from it. Did the cheap injector have a different return spring, Pintle size or was in some way electrically different, I don't know. I just know that not all fuel injectors are the same. I would want to check how much gas flows through the injector at a certain pressure within a certain time. Before and after cleaning. Edited by freegeo, Oct 21 2017, 04:10 PM.
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| Iconn | Oct 21 2017, 10:30 AM Post #2 |
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ICONN
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Yes this defective Davco looks significantly different from the Bosh |
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| freegeo | Oct 21 2017, 12:10 PM Post #3 |
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Thanks for the response. I tried out the injector tester I recently got and it is not working. So my plans to test and clean injectors will be put on hold temporarily. |
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| freegeo | Oct 22 2017, 09:24 AM Post #4 |
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Found this Youtube video that shows the potential problems with the cheaper fuel injectors. This is not one that would work in a metro but the OEM injectors were Bosch. If you can find them in the junk yard it would be worth picking them up. https://www.youtube.com/watch?v=l2ne6AVnF2k |
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