Alfa Romeo Forums banner
1 - 6 of 6 Posts

·
Registered
Joined
·
10,109 Posts
Did you test it correctly? (Remove wires and put 12v to terminals.......hold them there a few seconds and engine will run very lumpy, almost conk out)
Does the solenoid at least click? (Might just be the solenoid?)
If solenoid clicks but engine doesn't go lumpy, then likely an oilway problem (of course a visual test that the plunger is going in-and-out and is contacting the pin is necessary)
Somebody been in the cam cover recently and forgot to put the plunger back in, or worse, the plunger fell into the engine when putting the cam cover back on!?

Mike in Canada wrote an excellent thread on getting his VVT working again......and certainly noticed a difference between a working VVT and not.
Like Eric says it won't harm the engine, but the VVT does make some overall performance difference.

http://www.alfabb.com/bb/forums/spider-1966-up/309313-how-do-you-test-vvt-mechanicals.html
 

·
Premium Member
Joined
·
2,069 Posts
I assume you are saying that when you floor the throttle, the vvt solenoid isn't activating?
If so, pop the harness off the solenoid and apply a 9v battery to the terminals (polarity is not important).
It it now activates, your problem is either the inline fuse on the passenger fender wall or the throttle position sensor. Test those to find the culprit.
If it doesn't activate, remove the solenoid and take the plastic cover off the end and clean the assembly.
Put the assembly back together and test it again with the 9v battery. If it still doesn't work, you need a new solenoid.

You can refer to this post for this.
http://www.alfabb.com/bb/forums/spider-1966-up/415594-vvt-solenoid-really-dead.html

Otherwise the post SS4 attached the link for if the solenoid activates, put the mechanical portion of the vvt doesn't appear to be working.
 

·
Premium Member
Joined
·
2,043 Posts
It it now activates, your problem is either the inline fuse on the passenger fender wall or the throttle position sensor. Test those to find the culprit.
There's actually a third possibility. It could be a bad circuit board within the connector that attaches to the solenoid. If that's it, you will either need to find a used replacement harness, or come up with another solution. My improvised solution is in the attached link:

http://www.alfabb.com/bb/forums/spider-1966-up/361529-replacement-electronic-vvt-harness.html
 

·
But Mad North-Northwest
Joined
·
12,579 Posts
You'll get better advice on fixing it if you list the year of your car. The solenoid actuation is different for the S3 and the S4 models.
 
1 - 6 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top