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No-Start help

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Old Aug 23, 2021 | 11:28 PM
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nathan launer's Avatar
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Default No-Start help

Running out of ideas on what to try next. Here's what I have do so far. Please let me know if I skipped over any systems or should have gone about diagnosing the no start differently.

I have proper fuel pressure at the rail.
I have a signal pulse to the fuel injectors
I have proper spark on each spark plug
I have good compression

Compression:
- I preformed a compression test but connecting a compressor tester and checking PSI

Fuel
- First checked that when the key engages that the pump primes and turns on. If not, check for voltage at pump/sending unit
- Then checked fuel pressure level at fuel rail using a fuel pressure tester at the fuel rail valve
- Checked and replaced the fuel pressure regulator
- Checked fuel injectors for signal using noid light
- Checked Ohm rating of injectors

Spark
- Used an OTC spark tester to check for spark on each spark plug

Air
- Made sure filter was clean and free of debris


If I am still experiencing a no start, can you think of anything else I should check?
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Old Aug 24, 2021 | 06:44 PM
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Do you smell raw fuel when trying to start? Towards are the injectors really working?
Has the timing been verified?
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Old Aug 24, 2021 | 08:26 PM
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Originally Posted by wde3477
Do you smell raw fuel when trying to start? Towards are the injectors really working?
Has the timing been verified?
I don't smell an overly strong fuel smell. Hard to tell with my smelly garage but no I don't really smell any fuel.

I confirmed my timing is currently 10 degrees before tdc.
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Old Aug 25, 2021 | 10:30 AM
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Hmmm, then would suggest your leading suspect is fuel.

Never fooled much with the injection system, but recall others here mentioning the loss of grounding has caused problems. Would look for something common to all injectors, rather than the same thing wrong with each specific injector.

Good luck, and keep us posted.
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