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Re: Top Swap having horrible idle, no power on throttle
right at about 13 seconds in, i see your fat tb vac line goes to a white nipple with a clear tube thats going into the harness? wheres that going to? it should be routed to the evap solenoid.
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Re: Top Swap having horrible idle, no power on throttle
you need to fix that exhaust leak. drill the old broken stud out and put new bolts and nuts on there. a leak there can cause it run poorly.
you really should have headers, or at least a 3 inch down pipe and a plog.
if you have a droid phone get the toque app, and the obd2 blue tooth scanner, app is 5 bucks, the blue tooth obd2 is like 10 bucks off ebay. it will scan more live data then you can shake a stick at.
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Re: Top Swap having horrible idle, no power on throttle
Yeah you really need a way to scan, and you have to fix one thing at a time. It's hard to diagnose one thing when other things aren't right. Start with fixing things you know are messed up, and go from there. So your xover isn't bolted to the rear manifold at all? It's just sitting there? I wouldn't trust an AZ maf sensor either, that sucks it cost $180.
If it'll get you to work with the maf unplugged, do it. You gotta get to work, and that alone won't hurt anything if you just take it easy.
What code do you have that's setting your SES light?
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Re: Top Swap having horrible idle, no power on throttle
Quote:
Originally Posted by
Scottydoggs
right at about 13 seconds in, i see your fat tb vac line goes to a white nipple with a clear tube thats going into the harness? wheres that going to? it should be routed to the evap solenoid.
The fat TB vac had two holes in it. The top one that goes into the white nipple with a clear tube is just plugged, It doesn't go to anything. Underneath that I have the vac routing to this.
http://i.ebayimg.com/00/s/MjcwWDMwMA==/$%28KGrHqJ,!i4E-%29cU%29z6dBQ!HqsSL!g~~60_35.JPG
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Re: Top Swap having horrible idle, no power on throttle
Quote:
Originally Posted by
Scottydoggs
you need to fix that exhaust leak. drill the old broken stud out and put new bolts and nuts on there. a leak there can cause it run poorly.
you really should have headers, or at least a 3 inch down pipe and a plog.
if you have a droid phone get the toque app, and the obd2 blue tooth scanner, app is 5 bucks, the blue tooth obd2 is like 10 bucks off ebay. it will scan more live data then you can shake a stick at.
I have the 3" dp but no plog. I'll get on that exhaust leak tomorrow. Can I use old rocker arm bolts there?
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Re: Top Swap having horrible idle, no power on throttle
Quote:
Originally Posted by
99GT2dr
Yeah you really need a way to scan, and you have to fix one thing at a time. It's hard to diagnose one thing when other things aren't right. Start with fixing things you know are messed up, and go from there. So your xover isn't bolted to the rear manifold at all? It's just sitting there? I wouldn't trust an AZ maf sensor either, that sucks it cost $180.
If it'll get you to work with the maf unplugged, do it. You gotta get to work, and that alone won't hurt anything if you just take it easy.
What code do you have that's setting your SES light?
Nope it's not bolted to the rear manifold at all. The front manifold it bolted to the crossover but both bolts in the back to the rear manifold broke off.
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Re: Top Swap having horrible idle, no power on throttle
Ok you gotta get on that asap, that's a pretty big pre-02 sensor exhaust leak. That's why it runs good when you first start it up, it's in open loop not using readings from the 02 sensor. Same with the maf sensor unplugged I believe, it runs strictly off the VE table ignoring 02 values.
How did those bolts get broken? Shouldn't have needed to pull the xover for any reason I can think of.
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Re: Top Swap having horrible idle, no power on throttle
use what ever bolts you got that will fit.
and the tb vac line, thats routed to the right place. i guess you used the old line off the n/a tb. if that fat hose there is leaking not tight, cracked, it can cause that surging, and could be whats leaking when you spray the tb area.
you can get a new fat line, like 3 inches long, then take the new vac line from the evap solenoid., and push it inside the fat line.
this is how i fixed my fat line when it cracked on me. fat hose to normal vac line to the hard line. on a sc car, the evap lives on the rear of the engine on that bracket you posted a few weeks back.
http://i1097.photobucket.com/albums/...ob/vachose.jpg
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Re: Top Swap having horrible idle, no power on throttle
Quote:
Originally Posted by
99GT2dr
Ok you gotta get on that asap, that's a pretty big pre-02 sensor exhaust leak. That's why it runs good when you first start it up, it's in open loop not using readings from the 02 sensor. Same with the maf sensor unplugged I believe, it runs strictly off the VE table ignoring 02 values.
How did those bolts get broken? Shouldn't have needed to pull the xover for any reason I can think of.
I had to pull the crossover off when I was removing the old l36 heads. Other wise I wouldn't of been able to get the manifolds off of the heads. I'll get that fixed ASAP.
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Re: Top Swap having horrible idle, no power on throttle
Quote:
Originally Posted by
Scottydoggs
use what ever bolts you got that will fit.
and the tb vac line, thats routed to the right place. i guess you used the old line off the n/a tb. if that fat hose there is leaking not tight, cracked, it can cause that surging, and could be whats leaking when you spray the tb area.
you can get a new fat line, like 3 inches long, then take the new vac line from the evap solenoid., and push it inside the fat line.
this is how i fixed my fat line when it cracked on me. fat hose to normal vac line to the hard line. on a sc car, the evap lives on the rear of the engine on that bracket you posted a few weeks back.
http://i1097.photobucket.com/albums/...ob/vachose.jpg
The rpms only go up when I spray right where the TB meets the SC. I replaced the gasket with the brand new one and it still did it. I'm kind of thinking that it just soaks into the gasket and then gets in there? I mean, it's a brand new gasket, and torqued down to specs and then some. I could go all around the gasket with some Blue RTV i have if you think that's neccesary. Also, I used MAF cleaner instead of Carb cleaner. I didn't have any carb cleaner so I figured MAF would be okay to use since it's less aggressive. My EVAP is still at the front of the car, same place it was at before the swap.
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Re: Top Swap having horrible idle, no power on throttle
also here is the new youtube vid. took a while to upload. Thanks for all the help guys, I really appreciate it.
https://www.youtube.com/watch?v=JfS7...ature=youtu.be
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Re: Top Swap having horrible idle, no power on throttle
Ah, gotcha, forgot you had to pull the heads. Was thinking you just went down to lim ssm90 style for some reason.
To avoid breaking bolts like that in the future, use plenty of lube (pb blaster), and work it back and forth, don't just keep cranking on it. I'll loosen 1/2 turn, then tghten 1/4, spray, and keep working it like that. You can feel it when starts to get too hard to turn, that's when you go the other way a bit and spray. Sometimes it's unavoidable, but I rarely break any bolts using that method. Living in TX also helps, we only use salt on our food, not our roads, lol.
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Re: Top Swap having horrible idle, no power on throttle
Quote:
Originally Posted by
99GT2dr
Ah, gotcha, forgot you had to pull the heads. Was thinking you just went down to lim ssm90 style for some reason.
To avoid breaking bolts like that in the future, use plenty of lube (pb blaster), and work it back and forth, don't just keep cranking on it. I'll loosen 1/2 turn, then tghten 1/4, spray, and keep working it like that. You can feel it when starts to get too hard to turn, that's when you go the other way a bit and spray. Sometimes it's unavoidable, but I rarely break any bolts using that method. Living in TX also helps, we only use salt on our food, not our roads, lol.
Yeah those were the only 2 that broke. I used A LOT of WD40 for 3 days, every day, before the swap on all those bolts down there and they still broke. I'm in NM, so we don't have a salt problem either. hahah
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Re: Top Swap having horrible idle, no power on throttle
Now the question is can you return the $180 maf sensor you bought at AZ? I hope so, or at least get a credit to put toward other stuff.
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Re: Top Swap having horrible idle, no power on throttle
to think i only broke one of them bolts, but mine were not going back on, so no cares. ( i got salt) lol
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Re: Top Swap having horrible idle, no power on throttle
Quote:
Originally Posted by
99GT2dr
Now the question is can you return the $180 maf sensor you bought at AZ? I hope so, or at least get a credit to put toward other stuff.
Yeah I returned it lol. As soon as I saw it didn't help anything I ran back and got a refund.
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Re: Top Swap having horrible idle, no power on throttle
So as of now are we betting on it being the o2 sensor getting bad readings due to the exhaust leak? And what do ya'll think about the TB to SC situation. Vac leak? or just gasket absorbing what I spray on it?
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Re: Top Swap having horrible idle, no power on throttle
my bet is on the fat hose is loose or cracked off the side of the TB. no way anything should be getting sucked in via a gasket.
fix that exhaust leak, i bet it runs so much better.
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Re: Top Swap having horrible idle, no power on throttle
Pb > WD all day long. I mean WD is better than nothing, though.
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Re: Top Swap having horrible idle, no power on throttle
Quote:
Originally Posted by
Scottydoggs
my bet is on the fat hose is loose or cracked off the side of the TB. no way anything should be getting sucked in via a gasket.
fix that exhaust leak, i bet it runs so much better.
Hmm. So when I spray where the TB meets the SC some vapor is just getting into the fat hose if it's loose or cracked? I'll see If i can drill out those bolts tomorrow and get it all sealed up.