ECU code 11

[bober47]

Well, my reliable truck has a driveabilty problem. Intermittment (during some driving sessions -no problems) stalling at low rpms, and short random power losses at highway speed. I can keep a cold engine running by riding brake and feathering accelerator for additional fuel. The stalling seems to be less significant as driving time exceeds 20 min. (perhaps coolant/engine temperature related. What i have done so far:

 

Old Fuel filter removed - New one installed.

 

Checked my ecu - revealed code 11 - crank angle sensor- in distribution. I've performed the test mentioned in the repair manual and there is no ground to tab D of the connector with the ignition off (if working it should have gound). -a fix means swapping out old dist. with a new one- expensive - sources requested. thanks

 

Removed just about all electrical conectors for visual inspection for corrosion etc.

 

Observed fuel injectors during operation and noticed a lack of fuel delivery when stalling occurs or tries to stall during idle. It almost seems one injector is a bit drippy, and some gas dropplets get splatter upward. I don't know if this normal. Never had the injectors cleaned in over 65,500- don't fix what is working fine?

 

Performed fuel pressure check - 32lbs - engine cold, engine warm 34 pressurized; Engine running cold 38, 39lbs running normal op temp.

 

Mpg is great >18 <19.5. no noticable difference in exhaust.

 

Well, now i'm wondering if the crank angle sensor in the dist. is really failing/failed or can it work intermittily, as in malfunctioning.

 

Local Nissan expert - want $85 for just diag. But i just might do it soon. You never leave the shop for less than $220.

 

 

:help:

Edited February 3, 2006 by bober47

[Simon]

Do you know anyone around you with a Pathy, or even an old Maxima that you could steal the distributor out of for a while to test? At least that would save you the $85 diagnostic....

[bober47]

No, but I'll check around, at the local yards.

 

[k9sar]

Location - No Information

 

 

if you were near me, I think I have a spare dist

[bober47]

Tucson, Arizona!

[k9sar]

nope. sorry. I'm east coast.

[88pathoffroad]

The crank angle sensor also fires the injectors, in case you didn't know.

[bober47]

After a refilling the fuel tank, I added a bottle of Lucas Fuel Additive. After using up the gas, the trouble suddenly went away! A couple of years ago, I had a rear diff. nose when turning, but after adding some Lucas product to the new diff oil and the nose problem was gone! Believe of not.

 

I am a happy man.

 

 

Bob

Tucson

 

 

 

-bounce-