© 2025 DRIVEN LIFESTYLE. All rights reserved.
This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.
Eurospares can source them, though not a stock item for them here. The price was within £2 of Ferrari!
The pictures tell it all. I've also added a little about me. Apologies for not having any profile details. Always seem to be too busy! Thanks again
Removing the sump plate gives access to the two oil pickup strainers and the oil pressure relief valve. The valve is held in place by a 32mm plug...
ok, so the answer to the first question is no. The three plugs are gearbox related and not engine. Great for draining gearbox oil though! So,...
We have a 1990 Testarossa with a sticky oil pressure relief valve. I'm hoping that access can be gained to it through one of the multitude of...
It looks like the gauge is accurate. What readings do other people get with a cold engine? Any idea where the relief valve is?
We have a Testarossa in showing signs of excessive oil pressure. The gauge shows around 130psi (just over 3/4 on the gauge) at 2500rpm until the...
Hi Steve The fault was with the red wire that goes to terminal 87 of the protection relay. It was kinked over just before the crimped terminal...
Missed out the faulty alarm module and now have two pumps working as they should! We also have a car that starts on the button and runs very...
Yep.. now Ive unearthed it the box is marked with an alarm sticker. I'm guessing its one of those darned Valet mode units to reduce the power by...
Apologies... I'm muddling my front and my back ... always dangerous! Checked out the protection relay in its magical box and found a fault with...
Well, its an F113B engine, as suspected. And, there is no power at the red wire when cranking. So, the diagnosis of a faulty protection relay may...
The car is a 1990 Euro spec. Not sure of the engine family. No cats. Its a new acqusition for a friend of mine and it started well enough when we...
Hi Steve Thanks for the reply. Yes, checked the output at both pump feeds from the fusebox and all is present and correct. If I run a wire from...
I have a problem with a 1990 Testarossa. The fuel pump feeding the left hand bank has no power to it. I've done all the usual checks around the...
