TB coolant and idling
10-15-2006, 12:42 AM
#1
TB coolant and idling
Does disconnecting the Coolant lines from the TB affect the Idle? I disconnected the lines, and now the car idles at 1200-1500 in Park and Neutral. In Drive and Reverse, the idle is correct. I think I might have moved the TPS sensor when I was messing around with the intake manifold, so I'm gunna have to check that out too.
10-15-2006, 10:45 AM
#6
hmm. What size hose are you using to go back into your manifold? have you tried playing the the idle screw on the IACV? Check those as well as what you said with the TPS. Your going to have to just try different things.
10-15-2006, 01:35 PM
#8
That's too small. I used that setup and it never worked. The hose going back to the manifold has to be atleast 1/2" or more for the IACV to properly work. I would recommend 9/16". B/c that setup requires a large nipple I ended up using the 00tb with 00 IACV. Cold starts work like a charm and I have no problem with idle through all gears including the use of A/C. When A/C is on my idle jumps up like normal.
10-15-2006, 04:04 PM
#14
you did a number on that. Before you customize things again try to play around with the idle and TPS. You said that drive is fine, but park is bad. I would suggest doing the proper steps as depicted in the FSM. Disconnect the TPS and adjust the idle screw until you get 650 ro 700 rpm while in park. Than connect the TPS and reset the ecu. This should correct any irregularities. This only works if the TPS is correctly setted when its at idle and WOT.
If that doesn't work than you might have to go with the bigger hose. I hope this will help.
If that doesn't work than you might have to go with the bigger hose. I hope this will help.
10-15-2006, 04:12 PM
#15
disconnecting the TPS and adjusting the idle screw does nothing...... turning the black screw does nothing at all. Only if I take out the screw all the way, then the idle goes down..... Guess Im gunna have to go with bigger hoses.
10-15-2006, 04:25 PM
#16
Yea, that suxs. Honestly like I said, I haven't heard of too many people with a working 4th gen IACV unless they used Stephen Max adapter plate with the opening for the IACV or use a large enough hose. Also, don't try to half step. Try to go as large as possible to get back to the correct opening size. IIRC 9/16" would be the ideal setup for enough air flow back into the manifold.
The only thing is your idle very high. That's usually caused by too much air flow. There's a screw on the TB next to the cable. Unloosen that and see what that does. That may be the reason why your idle is high. Its on the left side.
The only thing is your idle very high. That's usually caused by too much air flow. There's a screw on the TB next to the cable. Unloosen that and see what that does. That may be the reason why your idle is high. Its on the left side.
10-15-2006, 04:51 PM
#18
I don't know about the pathy? But your connecting to the manifold not the pathy. The whole purpose of having a large enough hose is to allow normal idling during cold starts. I use the 00IACV and it makes life so much easier b/c it electronically controls idling. The thing with GoldTooth is that he eliminated the coolant lines and that also messes with the fast cam on those TB. I heard of people removing the coolant lines with no problems but he has a different setup. Its going to be trial and error unless you know of someone that has done it. I can only talk from my perspective and what I have read.
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Unclejunebug
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