On a 1993 6 Cyl Coupe I received a Fault 46. This fault appeared after the car was not run for about a month. The engine started an appears to run normally. I looked in the workshop manual and found nothing on this component. In the drivers manual under possible faults it says: "Powertrain control module engine output to idle air control valves coils." I haven't a clue on the location of the parts or the circuit. Knowing where to look in the car would be very helpful and possible discussion on a fix for the fault.would be a plus.

Thanks

 

Found the "Idle Control Valve" on eBay. Price range from $10.00 to $144.00 Bought one for $11.00 free shipping. Once I had a picture I found it on the car. It is located on the driver side very close to the middle of the intake manifold. I hope this helps the 172 people that looked at the initial posting and apparently didn't know the location either

 

Just because the DTC mentions the IACV does not mean that the valve has failed, it means the circuit has a problem.

It COULD be the valve but it could also be the CIRCUIT (wiring) or the ECM output.

I uploaded S91_AJ6 4.0 Engine Management.pdf to this forum and Gus should have it on his site.

It will have ALL the info you need for the AJ6 diagnostics.

The document is over 13mb.

If you do decide to remove the IACV I would advise using a small butane 'pencil torch' to melt the blue thread-locker or you risk SNAPPING the tiny fasteners off in the throttle housing!!!!!!!!!!! I gathered many of throttles from my buddies at the dealer that snapped the tiny bolts off in the aluminum housing and then quoted a new throttle to the customer. VERY EXPENSIVE!!!

I took the throttles home and carefully extracted the broken screws, cleaned them and sold a few on eBay. I still have a few with broken screws...... Maybe someday.

Good Luck

bob

 

It takes a Texan! Thanks Bob
I did remove the IACV . Did have a bolt problem. the lower bolt dropped an went to bolt heaven. Gone forever! Purchase on eBay an IACV that comes with bolts The problem was solved easily if it doesn't involve a micro processor. The inner shaft screw was loose and, of course the actuator wouldn't move.
Thanks again; I appreciate your input

 

IAVC arrived. Part looks excellent; screws supplied do not fit. Bought 4 mm bolts locally. Reinstallation a problem on 6 cyl because lower bolt is hidden and fingers just don't fit to insert bolt. Strongly suggest you tie a strong thread around bolt to aid in recovery if you drop the bolt. There's a black hole under the IAVC and magnet will not recover bolt.

 

Sorry I must've missed your original post! I could have told you exactly where it was smh. I just pulled the whole block out and worked on it on my workbench. So much easier 😉

 

SMH ??? Will give it one more try and if it doesn't work I will pull the block. Thanks for the info!

 

Smh= shake my head\shaking my head. Really it's only the electrical connector, the hose on the end,then the four bolts on the block. I pull the front 2 out so it can slide under the fuel rail easier

 

 

I've actually done pretty much all my work from up top, including the alternator, starter, and all the coolant hoses. The alts not bad really. You have to remove the air filter housing and air pump, and it's right there. Wouldn't hurt to do your belts while you're there if they haven't been

 

Good advice. Manual instructions pretty much the same. They say to get wiring off from underneath. Will see! Ordered alternator from Auto Zone. Delivered to house at $115.00 Willl see if it fits and the amps are 115
Thanks for advice