RKTJeep Posted August 11, 2020 Share Posted August 11, 2020 I had a HO 4.0 rebuilt for my 88 Pioneer that was in a factory configuration. Added Borla head/exhaust and ran the HO Intake manifold and TB. Recently got a job in California and have to convert everything back for CARB compliance. Luckily I have all the original parts except the airbox. There are a couple tings that I need clarification on when I swap the intake, TB, and vacuum lines. Can someone post up some picture of a factory vacuum line setup, particularly what is where on the intake manifold. (See color coded pic) I think I'm missing some fittings on the TB for the MAP vacuum line. (See pic) Also do I need order a filter or diffuser for this vacuum port in the airbox (see pic) Link to comment Share on other sites More sharing options...
cruiser54 Posted August 12, 2020 Share Posted August 12, 2020 Link to comment Share on other sites More sharing options...
RKTJeep Posted August 12, 2020 Author Share Posted August 12, 2020 2 minutes ago, cruiser54 said: Thanks Cruiser, I've looked at this diagram when I did some searching. But it's still unclear what is connected to the Green, Blue, and Purple vacuum ports? Link to comment Share on other sites More sharing options...
cruiser54 Posted August 12, 2020 Share Posted August 12, 2020 Green brake booster Blue IAT sensor Purple Vacuum for the vacuum reservoir/dash vents/cruise control. Link to comment Share on other sites More sharing options...
RKTJeep Posted August 12, 2020 Author Share Posted August 12, 2020 23 minutes ago, cruiser54 said: Green brake booster Blue IAT sensor Purple Vacuum for the vacuum reservoir/dash vents/cruise control. Perfect, thank you! Do you have the diagram for the reservoir, hvac, cruise, 4wd? Just want to make sure i get it all back to factory. Much appreciated Link to comment Share on other sites More sharing options...
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