Performance & Maintenance Engine, forced induction, intakes, exhausts, torque converters, transmissions, etc.

NA-T installed, car is not idlling :(

Thread Tools
 
Search this Thread
 
Old 03-11-13, 05:24 PM
  #1  
6SOARER
Lexus Test Driver
Thread Starter
iTrader: (20)
 
6SOARER's Avatar
 
Join Date: Jan 2009
Location: SoCal
Posts: 1,234
Likes: 0
Received 1 Like on 1 Post
Default NA-T installed, car is not idlling :(

I just finished with the install. Double checked vacuum lines and clips to all sensors, everything appears to be hooked up but the car would not idle. When I start the car, it would idle high then surge low, I would have to give it gas to keep it running.

I have the MAF on the turbo side, no air cleaner on it yet. Any suggestions to what I can do to resolve this? NO CEL, BOV is disconnected for now. I tried tightening the throttle cable, it did not help


Last edited by 6SOARER; 03-11-13 at 05:37 PM.
Old 03-11-13, 05:41 PM
  #2  
Zinik
Rookie
iTrader: (1)
 
Zinik's Avatar
 
Join Date: Sep 2012
Location: VC
Posts: 53
Likes: 0
Received 0 Likes on 0 Posts
Default

everything plugged back in and snug? maf, iacv, tps
Old 03-11-13, 05:49 PM
  #3  
6SOARER
Lexus Test Driver
Thread Starter
iTrader: (20)
 
6SOARER's Avatar
 
Join Date: Jan 2009
Location: SoCal
Posts: 1,234
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Zinik
everything plugged back in and snug? maf, iacv, tps
Affirmative, I had already double checked.
.
Old 03-11-13, 06:19 PM
  #4  
Ali SC3
Lexus Champion

iTrader: (10)
 
Ali SC3's Avatar
 
Join Date: Oct 2007
Location: CO
Posts: 10,761
Received 438 Likes on 368 Posts
Default

what did you do with your passenger valve cover breather hose, it needs to be routed in front of the turbo but behind the maf, or else you will be letting in unmetered air via the pcv = won't run right. Do not connect to intercooler piping obviously.
I also think with the stock maf an intake filter may even help it run a little better.

also did you get that S intercooler pipe from a mk3 kit?

Last edited by Ali SC3; 03-11-13 at 06:23 PM.
Old 03-11-13, 06:34 PM
  #5  
6SOARER
Lexus Test Driver
Thread Starter
iTrader: (20)
 
6SOARER's Avatar
 
Join Date: Jan 2009
Location: SoCal
Posts: 1,234
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Ali SC3
what did you do with your passenger valve cover breather hose, it needs to be routed in front of the turbo but behind the maf, or else you will be letting in unmetered air via the pcv = won't run right. Do not connect to intercooler piping obviously.
I also think with the stock maf an intake filter may even help it run a little better.

also did you get that S intercooler pipe from a mk3 kit?

The S intercooler pipe came with the kit I bought from a memeber here. Is there something wrong with it?

I do not have everything connected, I lied . I didnt think something so simple could cause this. Im going to reconnect it tomorrow to see if this does the trick.

U mean route the breather hose in between the turbo and MAF, right?
Old 03-11-13, 07:30 PM
  #6  
Ali SC3
Lexus Champion

iTrader: (10)
 
Ali SC3's Avatar
 
Join Date: Oct 2007
Location: CO
Posts: 10,761
Received 438 Likes on 368 Posts
Default

Nothing wrong with it I kind of like it actually. yup between the turbo and the maf. dont forget to reset the ecu before you start it for best results.
Old 03-12-13, 01:02 AM
  #7  
lookEVO
Lexus Test Driver
iTrader: (1)
 
lookEVO's Avatar
 
Join Date: Oct 2010
Location: CO
Posts: 988
Likes: 0
Received 1 Like on 1 Post
Default

Make sure all your clamps are on tight and sealed correct, the one to the throttle body looks off a bit.

I would also flip the MAF over, its not designed to be upside down I believe.
Old 03-12-13, 03:43 PM
  #8  
6SOARER
Lexus Test Driver
Thread Starter
iTrader: (20)
 
6SOARER's Avatar
 
Join Date: Jan 2009
Location: SoCal
Posts: 1,234
Likes: 0
Received 1 Like on 1 Post
Default

Alright so today I hooked up the breather hose, checked all my clamps to my piping, turned my MAF right side up, installed a open cone filter and resetted the ECU but the car still stalls. It is also driving like crap. I havent installed a boost gauge yet. I do have a brand new clutch and flywheel, I know these require a 500 mile break in procedure before I can really get on it but I do not feel any boost.

My wastegate, the vacuum line on the side is routed to the turbo comp housing. Top port is plugged(wastegate). Can a bad wastegate cause low idle, stall conditions? I bought the whole kit used so I am unaware of all its condition.

A few things that needs to be addressed-

-My exhaust is OPEN, I accidently broke the V band clamp but all O2 sensors are hooked up.

-I need (2) 2.75" to 3" reducer couplings and clamps for the middle pipe from the MAF and turbo. I inspected to see if there were any gaps in between, looks to be all tight.

I will be getting these parts tomorrrow to be replaced but do guys have any more suggestions?

Old 03-12-13, 03:44 PM
  #9  
Luxor
Pole Position
iTrader: (15)
 
Luxor's Avatar
 
Join Date: Jan 2006
Location: Arizona
Posts: 2,331
Received 37 Likes on 32 Posts
Default

Is your MAF installed backwards?
Old 03-12-13, 04:17 PM
  #10  
Halon
Racer
iTrader: (6)
 
Halon's Avatar
 
Join Date: May 2010
Location: MN
Posts: 1,519
Likes: 0
Received 40 Likes on 28 Posts
Default

What is your base timing set to?
Old 03-12-13, 04:22 PM
  #11  
6SOARER
Lexus Test Driver
Thread Starter
iTrader: (20)
 
6SOARER's Avatar
 
Join Date: Jan 2009
Location: SoCal
Posts: 1,234
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Luxor
Is your MAF installed backwards?
No, the arrow points inward towards the turbo.



Originally Posted by Halon
What is your base timing set to?
I could not check this because the car keeps stalling on me. I will have to check it once i get an extra hand to keep the engine speed stable
Old 03-12-13, 10:00 PM
  #12  
onlydrinkk
Driver School Candidate
iTrader: (1)
 
onlydrinkk's Avatar
 
Join Date: Apr 2010
Location: florida
Posts: 42
Likes: 0
Received 0 Likes on 0 Posts
Default

Can you say 100% all your vacuum lines are are on tight and not kinked in anyway possible. The 2jzge has the biggest pita manifold.It may seem tedious but literally start on one side of the engine bay and go through every vacuum line. The alternative to not checking everything twice is the current situation your in.
Old 03-12-13, 10:07 PM
  #13  
96DwpSC3
Driver School Candidate
 
96DwpSC3's Avatar
 
Join Date: Jul 2012
Location: CA
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default

Have you rechecked your distributor and wires? Also here is a link to double check your TPS:

throttle body manual

Last edited by 96DwpSC3; 03-12-13 at 10:28 PM.
Old 03-13-13, 08:12 AM
  #14  
Ali SC3
Lexus Champion

iTrader: (10)
 
Ali SC3's Avatar
 
Join Date: Oct 2007
Location: CO
Posts: 10,761
Received 438 Likes on 368 Posts
Default

I dont think the top port on the wastegate should be plugged, but that wont mess with your idle.
you need to disconnect your o2 sensor connectors if your exhaust is open, they are probably reading crazy lean and injecting much more fuel than you need. disconnect connectors and reset ecu. don't connect them until the exhaust is 100% leak free.

also what kind of BOV do you have, if you have a tial style,they tend to stay cracked open at idle sometimes, and if thats the case with the stock maf, you need to shim it until the piston stays closed at idle. the slightest crack letting air in will mess up the stock ecu.

Make sure your 4runner cap has all the wires in the right spot, it can get tricky when switching the leads to reach all the cylinders. If you didn't change your rotor inside that cap, I would do that with a toyota one as well, the 4 runner cap is not as perfect of a fit as the stock one.
Old 03-13-13, 08:23 PM
  #15  
6SOARER
Lexus Test Driver
Thread Starter
iTrader: (20)
 
6SOARER's Avatar
 
Join Date: Jan 2009
Location: SoCal
Posts: 1,234
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by onlydrinkk
Can you say 100% all your vacuum lines are are on tight and not kinked in anyway possible. The 2jzge has the biggest pita manifold.It may seem tedious but literally start on one side of the engine bay and go through every vacuum line. The alternative to not checking everything twice is the current situation your in.
I did check but I will prolly take the TB off to double check the lines around and underneath it. I was a Drifmotion today picking up a V band clamp and spoke with aaron, he said the same. If you have an idle problem with the GE(MAF equipped), its most likely going to be an air/vacuum leak.

Only vacuum line I havent hooked up is the Charcoal canister, I have it plugged off tho. I need the canister removed so i can work around the wire harness through the firewall.


Originally Posted by 96DwpSC3
Have you rechecked your distributor and wires? Also here is a link to double check your TPS:

throttle body manual
thanks for the link


Originally Posted by Ali SC3
I dont think the top port on the wastegate should be plugged, but that wont mess with your idle.
you need to disconnect your o2 sensor connectors if your exhaust is open, they are probably reading crazy lean and injecting much more fuel than you need. disconnect connectors and reset ecu. don't connect them until the exhaust is 100% leak free.

also what kind of BOV do you have, if you have a tial style,they tend to stay cracked open at idle sometimes, and if thats the case with the stock maf, you need to shim it until the piston stays closed at idle. the slightest crack letting air in will mess up the stock ecu.

Make sure your 4runner cap has all the wires in the right spot, it can get tricky when switching the leads to reach all the cylinders. If you didn't change your rotor inside that cap, I would do that with a toyota one as well, the 4 runner cap is not as perfect of a fit as the stock one.
I been busy dogsitting my sisters chiauaua, when I get a chance I am going to mess with it some more.

BOV is a true HKS, wastegate is a Tial 38mm.

All the wires are routed right. I had to swap number 1 with #2 cable cause wire 1 was too short. I do have a new rotor but it isnt Toyota, hope it works the same.


Quick Reply: NA-T installed, car is not idlling :(



All times are GMT -7. The time now is 05:44 PM.