86 TR intermittent power

What are the part numbers on the invoice? Price?

Official F dealer?

 

Car should run perfectly closed loop or not. The difference should be indiscernible.

Sorry but to me it sounds as though diagnosis of a TR is beyond them. And the comment of "new fuel pressure aggravating a small timing issue"??
Please tell me these are not professional auto mechanics.

Get the car out of there and get it to someone who has a clue.

 

First thing to do is confirm/deny if both fuel pumps are operating and check to see if the fuel pump connections at the fuse-relay panel are frazzled, or not:

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A new, "tight" fuel pump will draw more current (like ~11A) and aggravate those connection (vs a well broken-in CIS fuel pump which might use ~9A). (The connector has to be unplugged to inspect these terminals -- the damage is not visible when the connector is plugged in.)

An easy way to test is to remove each fuel pump relay and touch a jumper wire from 30 to 87 in the relay socket (key "off"):

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You should be able to "hear" each fuel pump run. (Note: the fuel pump relay name labeling is a little confusing: the LH fuel pump relay runs the fuel pump mounted on the LH side of the chassis, but it serves the 1-6 RH bank. And, likewise, the RH fuel pump relay runs the fuel pump mounted on the RH side of the chassis, but it serves the 7-12 LH bank.)

PS It is nonsense to even suggest that it can always be left in closed-loop operation. When the engine is cold, it has to operate in open-loop mode as the O2 sensors (on a US version TR) do not produce usable signals until they've warmed-up. What version TR do you have? (US F113A040 engine, early euro F113A engine, late euro F113B engine, something else?).

 

He's got an 86.

 

So what? That does not define the version -- i.e., what CIS injection system it has: US version = KE-Jet with Lambda; early euro = K-Jet without Lambda; late euro = KE-Jet without Lambda.

 

Chicago burbs. And odo = miles

 

Garys guys are good. If you are in Chicago area go to Continental Ferrari and ask to have Todd Routi work on it. I know Todd and he is a very good mechanic with outstanding diagnostic abilities. A dealer may cost more per hour than where you are at but Todd will not waste time chasing ghosts or replacing unneeded parts.

 

Both of the F dealers he could be speaking of have good reputations. Maybe there's some misunderstanding about what they meant.

As far as the fuel pump - recent discussion - https://www.ferrarichat.com/forum/threads/fuel-pump-options-1990-testarossa.673832/

 

Thats BS. I know Gary the service manager. He should know better. I can talk to him.

Either that or have Todd confirm the diagnosis. You cannot leave it in closed loop and no diagnosis requires pulling the engine. Everyone falls prey to greed sooner or later I guess.


Tell Gary Krall Brian Crall in Austin says if the timing was out it would run better in open loop than in closed loop. Their diagnosis is crap. He has my number.

 

No they do not. My information on US Ferrari dealers comes from far better sources than this place.

And thanks but I am far more familiar than you with the fuel pumps. The wrong pumps are not causing his issue in any event.

 

Always good for a chuckle. Not relying on Fchat for those guys' rep, but even if I was, so what, lots of data here, including yours.

As far as pumps, whether it's the issue or not, it would be good for him to read that thread, particularly as you're also recommending another pump
than the Bosch that dealers are currently using.

 

Maybe you go to LFSC.

Isn't closed loop warm idle?

 

When I lived up north and down the street from Continental Motors, I chose to do business with Jon Weinberger's Ferrari dealership over the years. Many of us did, and certainly some chose to do business with Lake Forest instead. If you search "Continental Autosports Hinsdale" and look at their personnel histories, some of the personnel that I and many of my friends interacted with in the '80s and on are still there. Scott Wallace, Gary Kral and Tod Ruoti are top shelf. I believe you can and should call them directly, and at least give them the opportunity to read this thread. See what happens. EDoug