1985 Fuel Question!!!
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
You really need to get your hands on a FSM. All the guys who suggest injectors/regulators/gaskets have valid points. However with no Code 12 the FSM suggests the quad drivers in the ECM are faulty. This type of fault can give you all sorts of fuel fault indicators.
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
I'm with Muffin, BUT I think I would ohm the injectors first, very simple job. And it does sound like you may have a bad ECM, which can also cause a very rich condition, at least alot of guys reported that.
Melting Slicks
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
This sounds like a bad intake gasket, and a bad injector.
1. if the gasket is bad, the thing won't run because of the massive vacuum leak.
2. when it quits, and the injector is leaking, the manifold gasket is allowing the fuel into the oil.
OR
he has a cracked intake manifold, cracked head, or just a plain ol' mystery.
1. if the gasket is bad, the thing won't run because of the massive vacuum leak.
2. when it quits, and the injector is leaking, the manifold gasket is allowing the fuel into the oil.
OR
he has a cracked intake manifold, cracked head, or just a plain ol' mystery.
And how would a leaking intake manifold gasket allow fuel to get into the oil? If his car doe's have both of these problems, they would be mutaully exclusive.
Pro
Joined: May 2007
Posts: 659
Likes: 5
From: Holden, MO
Cruise-In IX Veteran
Do you have a FSM? If not I can scan the trouble shooting tree for no 12 code flashing for you.
Mike.
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Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
WHY haven't you ohmed your injectors yet!!!!!!! Do you know how? The fuel pressure test is showing fuel leaking somehow, the fuel in oil suggests leaky injectors, along with pressure dropping to 0. All you need is an ohm meter, disconnnect the injector and take the leads from the meter and touch them to the injectors, what you're looking for is a big difference in injector readings. That will tell you if the injector(s) coils are healthy or not.
Look at the top of this page and read FICINJECTORS, John has even posted to show guys how.
Look at the top of this page and read FICINJECTORS, John has even posted to show guys how.
Thread Starter
Advanced
Joined: Nov 2008
Posts: 59
Likes: 0
I have ohm the injectors which all of them are at 16. Im Gunna Borrow a friends injector tester tommorrow to see if i have any leaky injectors. But i Still need Troobleshooting diagnostics for no code 12.