123 Install Today - GETTING CLOSER..., PROGRESS: BAD MPS |
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123 Install Today - GETTING CLOSER..., PROGRESS: BAD MPS |
FlacaProductions |
Dec 14 2023, 09:50 AM
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#1
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Senior Member Group: Members Posts: 1,733 Joined: 24-November 17 From: LA Member No.: 21,628 Region Association: Southern California |
74 2.0 D-Jet
Heading to the garage now to start the install and my main, unresolved-in-my-brain question is if i need to hook up the vacuum line that is on my current stock distributor, on the 123. |
emerygt350 |
Dec 16 2023, 07:34 PM
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#2
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Advanced Member Group: Members Posts: 2,403 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
It would be worth figuring out what your vacuum hose does now, and if the Bluetooth version actually looks for map. If it's a 74 with one hose, it would have to be a retard and coming off below the butterfly and from the back side of the TB. Early 74s has both advance (ported, off the front of the TB) and retard. No 74 had just advance that I have heard of but POs do all kinds of things.
On the non-bluetooth 123 you choose adv or retard and hook the vacuum line up appropriately. On the Bluetooth I am not sure of the instructions but ported is very specific, MAP won't give you that, so for advance to work correctly I would think even the Bluetooth would need ported vacuum. |
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