91 RS 3.1 vacuum line help needed & update
618stanley
01-05-2007, 08:08 AM
Well the father / son project is getting better. We had many issues in getting the "attempted theft" car on the road. The first month was in and out of the shop with a new computer control unit and other odds/ends, couple of tow's as well. The codes would not lock in, coming and going at the car's whim, so I looked at the big picture, and took a stab at the local bone yard. Found a 92 firebird 3.1 and started cross referencing all the sensors, etc., that may make a difference and were compatable.
Replaced the throttle body with assc parts of IAC,TPS and the like. The MAP also switched out -.... no luck - still ran / died / a total crappy outcome but the parts were like new ?? "Time to re-evaluate and try again...."
Went back again and pulled off the EST from distributor and then found a 91 Lumina 3.1 with a new EGR valve. Did the EST unit and EGR, and the car now runs great, better than it ever has !!!!!!!!
This is where I need some help folks..
I had the shop check and make sure the vacuum lines were all routed correctly, I looked and they are not.
I looked at the diagram and the routes don't match up. I can see the smaller line going from the throttle body to the fuel pressure valve, and then the diagram has it going to the air pump but I can't fine a small line from the air pump into a 't" that would also go into the fuel pressure valve... and associated lines. I have a chilton book, car sticker and the like but diagrams aren't working out for me.
If anybody can supply me with real life photo's showing exactly what vacuum lines goes where I will forever be in debt to you. The shop tried and there are "t's" that don't match up and I'm getting confused with line drawings.
THANKS !!!!
Stan
Replaced the throttle body with assc parts of IAC,TPS and the like. The MAP also switched out -.... no luck - still ran / died / a total crappy outcome but the parts were like new ?? "Time to re-evaluate and try again...."
Went back again and pulled off the EST from distributor and then found a 91 Lumina 3.1 with a new EGR valve. Did the EST unit and EGR, and the car now runs great, better than it ever has !!!!!!!!
This is where I need some help folks..
I had the shop check and make sure the vacuum lines were all routed correctly, I looked and they are not.
I looked at the diagram and the routes don't match up. I can see the smaller line going from the throttle body to the fuel pressure valve, and then the diagram has it going to the air pump but I can't fine a small line from the air pump into a 't" that would also go into the fuel pressure valve... and associated lines. I have a chilton book, car sticker and the like but diagrams aren't working out for me.
If anybody can supply me with real life photo's showing exactly what vacuum lines goes where I will forever be in debt to you. The shop tried and there are "t's" that don't match up and I'm getting confused with line drawings.
THANKS !!!!
Stan
Blue Bowtie
01-07-2007, 10:27 PM
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