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1988 EA82 SPFI Running Lean
Posted 07 September 2013 - 12:58 PM
Posted 07 September 2013 - 02:31 PM
I'm thinking it's possible that I sucked up some gunk or dirt out of the tank when I ran it dry, and that that's impeding the fuel flow, I'll rent a pressure gauge and check it out later today. I hope it's not the fuel pump, that's the one part that's broken on my parts loyale.
Posted 07 September 2013 - 03:24 PM
Posted 07 September 2013 - 05:23 PM
Are fuel system cleaners like seafoam and the like actually any good, or would I need to pull the injector and clean it outside of the car?
Posted 07 September 2013 - 05:46 PM
seafoam is a good product, cleaning the injector out of car wasnt very easy for me, so I swapped out the tb. I would also check your cts for bog out issues
Posted 07 September 2013 - 06:03 PM
Pardon my ignorance, what is the cts? I tried googling it but all I find is a million pages about Cadillacs.
Posted 07 September 2013 - 09:11 PM
Posted 07 September 2013 - 10:52 PM
coolant temp sensor. it effects your IAC (idle air control) valve and can wreak havoc on drivability. its up by the tstat
Posted 08 September 2013 - 12:24 AM
For what its worth just like to mention that this forum has been fantastic. Newby to SPFI with my trike and you guys have helped me understand this system with your knowledge. - great!
Edited by tweety, 08 September 2013 - 12:25 AM.
Posted 08 September 2013 - 12:25 PM
Metered-air leak (vacuum leak or leak in the boot between MAF and throttle body)?
In my (limited) experience, CTS issues either throw check-engine codes (open-circuit or too much resistance) or make the engine run richer. Typical failure mode is corroded connectors and wires.
Running out of gas should not make any difference regarding crud: The tank's fuel outlet is fixed and located at a the bottom of the tank, so any crud would find itself there even with a full tank. (Except for ping-pong balls.)
Posted 08 September 2013 - 06:39 PM
Intake manifold gasket failures are pretty common for these models. Use some WD-40 around the gasket seal while the engine is running to see if that shows a air leak up by changes in the engine speed.
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