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Preston Davis (Pdavis)
New member
Username: Pdavis

Post Number: 11
Registered: 4-2003
Posted on Monday, June 16, 2003 - 9:01 pm:   

Steph, can yoo be more specific about which vacum line. This info might be useful to some poor sole out there that may be having the same problem. pd
Stephen Simpson (Steph)
New member
Username: Steph

Post Number: 36
Registered: 8-2002
Posted on Monday, June 16, 2003 - 6:06 pm:   

ended up being a cracked vacume line to the throttle Cant believe all this and it was something so simple...I thought ferrari maintenance was easy HA.HA.
Arnaldo Torres (Caribe)
Member
Username: Caribe

Post Number: 498
Registered: 2-2001
Posted on Thursday, June 12, 2003 - 2:45 pm:   

Do you know if your engine is running on both banks all the time? There are a couple of connector pins that control the ignition for each bank. If one of these connections is poor, you might be losing one of your banks randomly. So far, any issue that I had related to performance for my car, was in one way or another due to issues with the connectors at the Fuse Box. I took care of it by updating the pins at the Fuse Box. I have been about a year electrical problem free and the car feels great. Check the archives for information on what to check. A WSM is indispensible in this matter. I hope you have one.
Stephen Simpson (Steph)
New member
Username: Steph

Post Number: 35
Registered: 8-2002
Posted on Wednesday, June 11, 2003 - 9:17 pm:   

I jumped both fuel pumps at the fuse box and both appear to be working fine..

what next?
Arnaldo Torres (Caribe)
Member
Username: Caribe

Post Number: 497
Registered: 2-2001
Posted on Wednesday, June 11, 2003 - 7:08 pm:   

Check the archives for Fuse box issues related to the fuel pumps. As the TR ages, many of its Fuse box connectors tend to open up and make marginal connections. An intermittent or faulty fuel delivery could be caused by just this issue. It happened with my TR and it was easy to fix once you know which connector pins to check out at the Fuse box. Check the archives since this issue has come up many times before.
By the way, if the issue is related to the aging of the connector, replacing the fuse box will do very little to fix the problem (permanently).
Stephen Simpson (Steph)
New member
Username: Steph

Post Number: 34
Registered: 8-2002
Posted on Wednesday, June 11, 2003 - 3:49 pm:   

What bothers me the most is that the car ran perfect 2 days earlier. I drove again this morning and at about 1800rpms it still feels jerky.....
Jeff Green (Carguy)
Member
Username: Carguy

Post Number: 321
Registered: 10-2002
Posted on Wednesday, June 11, 2003 - 10:44 am:   

Stephen....it still could be a number of things, but since they said you need a new fuse box, I'd start there. From what I can gather, these TRs can have a great variety of problems due to the marginal connections...even problems that seem totally unrelated to the electrical system. If the problem persists after replacing the fuse box, I'd consider calling the shop that serviced it and see if they would consider looking at/or fixing this problem as it may be related to something they did.

If nothing else go through and verify all electrical connections are good, clean, and tight.
Stephen Simpson (Steph)
New member
Username: Steph

Post Number: 33
Registered: 8-2002
Posted on Tuesday, June 10, 2003 - 10:20 pm:   

too answer some of these questions..89 TR. 22000.0 miles...the car is warmed up to 185-190F also the car just came out of the dealer (world wide auto in NY {great guys})to match the engine banks, also to take care of an electrical problem. in Ny last week the car would not start due to a fuel delivery problem caused by a short. [Im told that I need a new fuse box when I return to FL.] other than that the car runs fine and pulls quite well after 2000rpms. The problem has just now appeared this morning
Jeff Green (Carguy)
Member
Username: Carguy

Post Number: 320
Registered: 10-2002
Posted on Tuesday, June 10, 2003 - 9:28 pm:   

Stephen...is the car "warmed up" when this happens? Or is it still cold? Sounds like something to do with the fuel injection system adjustments or....can't really say without more information. If you can, explain in great detail what's going on, I'm sure the many knowledgeable people here can help point you in the right direction. They have helped me work on my TR many times.
James J. McGee (Dr_ferrari)
Junior Member
Username: Dr_ferrari

Post Number: 98
Registered: 7-2002
Posted on Tuesday, June 10, 2003 - 9:23 pm:   

Stephen,
Could be anything from a poor setup to incorrect cam timing. anything more you could tell us?
last belt service, when did it start,etc...
As preston said - not normal....

regards, Jim
Preston Davis (Pdavis)
New member
Username: Pdavis

Post Number: 7
Registered: 4-2003
Posted on Tuesday, June 10, 2003 - 8:59 pm:   

Steph, need more info -- how much mileage on the car? This is NOT normal. I have a 1988.5 that runs and pulls great. PD
Stephen Simpson (Steph)
New member
Username: Steph

Post Number: 32
Registered: 8-2002
Posted on Tuesday, June 10, 2003 - 6:01 pm:   

any suggestions why 89 TR is sluggish and bucks a little in th e 1000-2000 rpm range during normal driving...above 2001 rpm car seems to drive fine with exception of 3rd gear if you let off the gas it has some light poping(backfiring)or is this normal

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