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smake60
03-16-2010, 03:16 PM
I'm thinking of buying a 1985 lx with the first generation throttle body fuel injection system. The car needs a complete exhaust system. My question is, will headers and a real dual exhaust system confuse the old mass density computer?

J
03-16-2010, 07:30 PM
are you replacing those components with stock stuff or something else?

gunner_501
03-17-2010, 08:27 PM
I wouldn't think the mass would care about the exhaust side.

smake60
03-18-2010, 11:16 PM
reply to j it would be stock for an 87-93 most likly without cats The 85 now has cast iron manifolds ana a 2 into1 into 2 exhaust

to gunner 85 FI was speed density not mass air

gunner_501
03-19-2010, 12:03 AM
Ya I thought about that after I had logged off .. my bad .. thanks for making me look like the village idiot .. LMAO

91GT347
03-29-2010, 12:36 PM
thanks for making me look like the village idiot .. LMAO

Ummmmm, nope. Thats just too easy.........No comment.


LMAO j/k

gunner_501
03-30-2010, 08:08 AM
:fu: Mark :rofl:

88foxbody
03-31-2010, 10:41 AM
I thought 86 was the first year for EFI, 85 still had a CARB.

smake60
03-31-2010, 07:43 PM
Some 85's had a throttle body with two injectors. I'd still like to know if i can change the exhaust system without confusing the computer. Better breathing on the exhaust side should not affect vacuum, the variable in a speed density system, but not sure

91GT347
04-05-2010, 09:48 AM
:fu: Mark :rofl:

lmao. Had to man.