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> 1.8 Questions for the masses
rick 918-S
post Sep 13 2021, 03:44 PM
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Hey nice rack! -Celette
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I was helping my old high school pal attempt to get a 1.8 running. The car is his daughters. She really wants to take it on her drivers test. May be even this week. We had some strange stuff occur.

The car was purchased at Auction. It had an engine fire due to a cracked clamp on the cold start valve. The fire consumed the center of the engine harness. Through the generosity of Betty and Clay they received a parts box at no charge. Thank you again you two!

I came into the picture when they had everything installed and we attempting to get it running.

Turned out they accidentally broke the inlet on the cold start. So I was lucky enough to source one from Jim Hoiland. Thank you Jim!

So with this install it would crank and barely run. Fuel pressure was at 40ish PSI. My friend Lowell smoke tested the intake system. All was tight.

Once we had it firing barely.. Lowell pulled the plug on the AFM and the car raced to life. Weird I know.

Pulled the plugs and notice #3-#4 were wet with Gas. #2 was dry like it never got fuel and #1 looked normal.

Lowell ordered a set of Injectors. We believe due to the process of elimination two of the injector were stuck open and one was stuck closed. Noid lighted all injectors that they are getting signal.

Any thoughts on the reason the car kept running with the AFM unplugged? Lowell thought possibly the injector that were stuck one were being siphoned allowing the engine to keep running.
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ClayPerrine
post Sep 14 2021, 06:46 AM
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Life's been good to me so far.....
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Rick,
If the injectors were stuck open, that would flood the engine. Pulling the AFM plug will cause the fuel to be cut off, and then the engine will run on the remaining fuel.

You can buy injectors at FLAPS. Just get them for a 1980 Datsun/Nissan 280Zx. They are the same as the 912E injectors.


Clay
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