Tb Mod Done...car Stalls
03-03-2003, 07:14 AM
#1
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Location: Tallahassee, FL
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what is it that I need to set? I didn't even remove the tps, but do I need to set it anyway? could it be my idle? When I got to work, it actually barely stayed running, at like 300 rpm.
I did the tb mod and added pineapple inserts. I have yet to be sure my secondary ports are opening. Can I grease the actuators? I cleaned everything out, but wasn't sure if it would mess them up to grease them.
I did the tb mod and added pineapple inserts. I have yet to be sure my secondary ports are opening. Can I grease the actuators? I cleaned everything out, but wasn't sure if it would mess them up to grease them.
03-03-2003, 09:58 AM
#2
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Join Date: Apr 2002
Location: IL
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the grease trick is pretty safe to use for checking if they move under load...
I would go through everything, set the initial set coupler, calibrate the tps, set idle, and check/adjust timing.
the tps can be a bit touchy to adjust right, you want it right on the threshold of idle, so when you start pressing the throttle pedal the smallest amount it should get off idle position. With the lights hooked up you want it barely adjusted to set the single light... make it so if you touch the linkage the slightest bit, it, comes off the idle position in the tps... this was the cause of my bucking often but my tps was going bad also, and the throttle bushings were a bit worn so there was some play making it inconsistent. I've noticed if it's adjusted too far into the idle area of the tps it will buck / hesitate around that spot on/off the gas, a very small section of throttle movement that will do it, and it seems to be the abrupt increase in airflow from pressing the gas while the ecu still thinks the throttle is closed, even though the AFM should be showing the airflow immediately.
I've said it before and I'll say it again, 80's engine management is a direct result of 60's drug use.
I would go through everything, set the initial set coupler, calibrate the tps, set idle, and check/adjust timing.
the tps can be a bit touchy to adjust right, you want it right on the threshold of idle, so when you start pressing the throttle pedal the smallest amount it should get off idle position. With the lights hooked up you want it barely adjusted to set the single light... make it so if you touch the linkage the slightest bit, it, comes off the idle position in the tps... this was the cause of my bucking often but my tps was going bad also, and the throttle bushings were a bit worn so there was some play making it inconsistent. I've noticed if it's adjusted too far into the idle area of the tps it will buck / hesitate around that spot on/off the gas, a very small section of throttle movement that will do it, and it seems to be the abrupt increase in airflow from pressing the gas while the ecu still thinks the throttle is closed, even though the AFM should be showing the airflow immediately.
I've said it before and I'll say it again, 80's engine management is a direct result of 60's drug use.
03-03-2003, 11:08 AM
#4
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I think it's a vacuum leak
Yesterday it ran fine, and I think a hose must've popped off. Took the car out at lunch for more test driving, and evidently one of the coolant caps I used where the tb coolant hose used to be popped off, and sprayed coolant everywhere; white billowing steam. I got a ride from a coworker, and plan on going to pep boys (on one of my work routes) and getting some coolant and a new cap (with clamp or glue this time).
Also, where does the cruise control vacuum hose connect? I think it came off.
There are 2 vacuum nipples on the UIM, near the LIM. There is one on closest to the firewall, that is capped off, and one that is closest to the front of the car. This nipple has nothing on it, and I'm wondering what goes here.
My other option is the vacuum nipple facing the firewall on the side of the UIM. There is a group of 3, 2 of which are capped off (one of those points upward). The middle one is missing a hose.
Of these 2 spots for hoses, the cruise control goes on one (I'm guessing), but what goes on the other?
Yesterday it ran fine, and I think a hose must've popped off. Took the car out at lunch for more test driving, and evidently one of the coolant caps I used where the tb coolant hose used to be popped off, and sprayed coolant everywhere; white billowing steam. I got a ride from a coworker, and plan on going to pep boys (on one of my work routes) and getting some coolant and a new cap (with clamp or glue this time).
Also, where does the cruise control vacuum hose connect? I think it came off.
There are 2 vacuum nipples on the UIM, near the LIM. There is one on closest to the firewall, that is capped off, and one that is closest to the front of the car. This nipple has nothing on it, and I'm wondering what goes here.
My other option is the vacuum nipple facing the firewall on the side of the UIM. There is a group of 3, 2 of which are capped off (one of those points upward). The middle one is missing a hose.
Of these 2 spots for hoses, the cruise control goes on one (I'm guessing), but what goes on the other?
03-03-2003, 11:16 AM
#6
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Join Date: May 2002
Location: California
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Originally Posted by Baldy' date='Mar 3 2003, 09:08 AM
I think it's a vacuum leak
Yesterday it ran fine, and I think a hose must've popped off. Took the car out at lunch for more test driving, and evidently one of the coolant caps I used where the tb coolant hose used to be popped off, and sprayed coolant everywhere; white billowing steam. I got a ride from a coworker, and plan on going to pep boys (on one of my work routes) and getting some coolant and a new cap (with clamp or glue this time).
Also, where does the cruise control vacuum hose connect? I think it came off.
There are 2 vacuum nipples on the UIM, near the LIM. There is one on closest to the firewall, that is capped off, and one that is closest to the front of the car. This nipple has nothing on it, and I'm wondering what goes here.
My other option is the vacuum nipple facing the firewall on the side of the UIM. There is a group of 3, 2 of which are capped off (one of those points upward). The middle one is missing a hose.
Of these 2 spots for hoses, the cruise control goes on one (I'm guessing), but what goes on the other?
Yesterday it ran fine, and I think a hose must've popped off. Took the car out at lunch for more test driving, and evidently one of the coolant caps I used where the tb coolant hose used to be popped off, and sprayed coolant everywhere; white billowing steam. I got a ride from a coworker, and plan on going to pep boys (on one of my work routes) and getting some coolant and a new cap (with clamp or glue this time).
Also, where does the cruise control vacuum hose connect? I think it came off.
There are 2 vacuum nipples on the UIM, near the LIM. There is one on closest to the firewall, that is capped off, and one that is closest to the front of the car. This nipple has nothing on it, and I'm wondering what goes here.
My other option is the vacuum nipple facing the firewall on the side of the UIM. There is a group of 3, 2 of which are capped off (one of those points upward). The middle one is missing a hose.
Of these 2 spots for hoses, the cruise control goes on one (I'm guessing), but what goes on the other?
you shouldn't have any open nipples at all (indecent exposure?), i dont know where the cruise control plugs into, off the top, i usually rip that out.
mike
03-03-2003, 11:26 AM
#7
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but I have 2 places where it looks like hoses should be, but can only find one unconnected hose (cruise control)...my cruise doesn't even work (I don't really care) but I figure I should at least have the hose in the right place until I remove it. I guess I'll see if I can find a vacuum diagram on fc3s.org
03-03-2003, 11:29 AM
#8
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Originally Posted by Baldy' date='Mar 3 2003, 09:26 AM
but I have 2 places where it looks like hoses should be, but can only find one unconnected hose (cruise control)...my cruise doesn't even work (I don't really care) but I figure I should at least have the hose in the right place until I remove it. I guess I'll see if I can find a vacuum diagram on fc3s.org
mike
03-03-2003, 11:34 AM
#9
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it actually reached both 
I think the cruise control hose might go on the one on the side, closest to the firewall, just becuase the cable and hose where clamped together, and the cable goes behind the tb, so the hose kinda follows it (just logical guesstimating)
more descriptive: where the subzero starting thing bolts to the UIM, there's a vacuum spot right there, which is blank (another way of saying it: it's between the 1st and 2nd intake tube, counting from the front of the car)...this is the one that worries me, because I see no loose hoses anywhere, and I'm sure it's the cause of the stalling out
and when it's idling with my foot on the pedal, it has a lot of pop sounds (consistant with vacuum leak?)
I think the cruise control hose might go on the one on the side, closest to the firewall, just becuase the cable and hose where clamped together, and the cable goes behind the tb, so the hose kinda follows it (just logical guesstimating)
more descriptive: where the subzero starting thing bolts to the UIM, there's a vacuum spot right there, which is blank (another way of saying it: it's between the 1st and 2nd intake tube, counting from the front of the car)...this is the one that worries me, because I see no loose hoses anywhere, and I'm sure it's the cause of the stalling out
and when it's idling with my foot on the pedal, it has a lot of pop sounds (consistant with vacuum leak?)