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IDLE driving me crazy


yeti
Nope still sticky fingers


Galant VR-4 org Post #: 1072843 posted 06/22/12 11:54 PM     Remind Me!  Send Private Message   Edit Post      
So since I bought the car it surges when cold and stalls when hot, even after i put the new motor in (not suprised)

So my iac is good
My egr and fiav not so sure about

Should I completely rebuild a TB and throw that on there or should i try a fiav block off plate?

Im guessing its the heat sensitive spring in the fiav?



~turbohair~

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James
Does lots of head


Galant VR-4 org Post #: 1072846 posted 06/23/12 12:04 AM     Remind Me!  Send Private Message   Edit Post      
Take off the TB and rebuild it. While its off take out the bronze blog and back out the adjustment for the FIAV to close it. Put it Back together and correctly set your idle.



1990 Summit White Galant GSX
Chipped EPROM ECU/2g maf/550cc injectors/3in exhaust /E316G/FMIC/Wally255/AeromotiveAFPR/lower shores MBC

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yeti
Nope still sticky fingers


Galant VR-4 org Post #: 1072869 posted 06/23/12 10:48 AM     Remind Me!  Send Private Message   Edit Post      
I've never been inside of a TB but I'm guessing there is a bronze plug you speak of, do they sell TB rebuild kits or do I just order new shaft seals?
I was thinking there is one that comes with biss screw and 0-ring,TB gaskets, shaft seals, maybe egr gasket..

Just wondering ive seen the shaft seals online Im going to search a TB rebuild kit



~turbohair~

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James
Does lots of head


Galant VR-4 org Post #: 1072870 posted 06/23/12 11:01 AM     Remind Me!  Send Private Message   Edit Post      
I bought mine from MachV, shaft seals that is. My BISS seal is fine soci didn't search for it.



1990 Summit White Galant GSX
Chipped EPROM ECU/2g maf/550cc injectors/3in exhaust /E316G/FMIC/Wally255/AeromotiveAFPR/lower shores MBC

Posts: 1322 | From: Port richey Florida | Member Since: 04/08/12 | IP: (198.228.200.33) | Report this post to a Moderator

SkylineVR4
Unregistered


Galant VR-4 org Post #: 1072871 posted 06/23/12 11:09 AM     Remind Me!  Send Private Message   Edit Post      
Make sure your throttle cable is properly adjusted, it could be not allowing the tb to shut completely

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yeti
Nope still sticky fingers


Galant VR-4 org Post #: 1072881 posted 06/23/12 02:52 PM     Remind Me!  Send Private Message   Edit Post      
Throttle cable is adjusted properly i can wiggle shaft and hear air coming out of it



~turbohair~

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rgeier11
sled driving mullet brain


Galant VR-4 org Post #: 1072954 posted 06/24/12 08:32 AM     Remind Me!  Send Private Message   Edit Post      
There are a ton of things to take into consideration for idle. No boost leaks, a good working ISC, a good ECU, good working throttle closed switch, clean throttle body, etc.



1992 GVR-4 #649/1000 SOLD
1998 3000GT VR4 1of19 in New Zealand Green
1992 TSI AWD

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KiNgMaRtY
Member +++
802/1000


Galant VR-4 org Post #: 1073090 posted 06/25/12 03:24 PM     Remind Me!  Send Private Message   Edit Post      
Buy a JM FIAV block off plate that leaves the ISC functional. It is only $15. Try that first before you send out your TB to get rebuilt. Have you done a boost leak test as of yet? I've had idle surge for nearly a year now changing out the ISC, block off plate and trying other things. I finally got to do a boost leak test and found my Intake Manifold gasket is leaking. I'm in the process of trying to remove it to change out the gasket

Try this linkm it is very helpful

click



92 GVR4 #802 link
17 CTS-V,06 Evo IX MR, 98 Montero
94 MX5 M-Edition - On Xidas, LS1 Swap in progress
SOLD: 92 GVR4 #611

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yeti
Nope still sticky fingers


Galant VR-4 org Post #: 1073193 posted 06/26/12 03:34 AM     Remind Me!  Send Private Message   Edit Post      
Quoting rgeier11:

There are a ton of things to take into consideration for idle. No boost leaks, a good working ISC, a good ECU, good working throttle closed switch, clean throttle body, etc.




Surges when cold stalls when hot..

I have no boost leaks other than TB, I have a good working isc,good ecu,idle switch? good if so, never clean throttle body, im going to switch to another TB i have tomorrow.

also im going to rebuild my TB



~turbohair~


Edited by yeti (06/26/12 03:54 AM)

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yeti
Nope still sticky fingers


Galant VR-4 org Post #: 1073337 posted 06/27/12 02:28 AM     Remind Me!  Send Private Message   Edit Post      
so over this damned idle. i just swapped complete throttle bodys...

im going to be rebuilding my old one..

i took my egr off and was going to switch it but i thought the ecu would make a CEL if it was bad so left it on..

what the hell could it be??

ONLY 2 Boost leaks are at TB shaft seal, and tap in j pipe



~turbohair~

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turbowop
Hard Snarker
1051/2000



Galant VR-4 org Post #: 1073339 posted 06/27/12 03:15 AM     Remind Me!  Send Private Message   Edit Post      
Have you even set the BISS on either TB? (the proper way) Base timing? Idle switch? Lots of things could be wrong. You should probably do some research.



-Mark

A face only a grocery shopper could love.
1051

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desant78
Member ++
1662/2000
995/1000


Galant VR-4 org Post #: 1073391 posted 06/27/12 01:07 PM     Remind Me!  Send Private Message   Edit Post      
If you want your TB rebuilt, a member on here 4nmscle sells all the seals you need. Hey will also rebuild the TB too if you send it out ot him. He's a great guy and starting up a shop so I suggest PMing him if you need someone to rebuild the TB.



i wanna go fast.

1991 GVR4 1662/2000 (parts car)
1992 GVR4 995/1000 (JSB)
2008 Evo X GSR (DD with bolt ons, 17x,xxx miles)

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James
Does lots of head


Galant VR-4 org Post #: 1073441 posted 06/27/12 06:27 PM     Remind Me!  Send Private Message   Edit Post      
If you have leaks as early as the Jpipe then you dont know all the leaks you may have. Lets put it this way...

My first leak was at the Jpipe.
When i fixed that i found a leap at the UICP/IC.
After fixing that i found one at the BOV flange
After that the TB needed to be rebuild
Then the FIAV

Now that i have from the turbo to the TB sealed... Today after a leak test i see my intake manifold is leaking.

When you fix one leak it adds that much more pressure to the next part in line.

If everything is properly sealed, the idle is properly set, the MAF/TPS/ISC/Throttle stop are all in working order, ecu is in woring order, throttle cable positioned correctly then you should have no idle problems. Though im sure i forgot something in that list



1990 Summit White Galant GSX
Chipped EPROM ECU/2g maf/550cc injectors/3in exhaust /E316G/FMIC/Wally255/AeromotiveAFPR/lower shores MBC

Posts: 1322 | From: Port richey Florida | Member Since: 04/08/12 | IP: (166.216.162.47) | Report this post to a Moderator

yeti
Nope still sticky fingers


Galant VR-4 org Post #: 1073482 posted 06/28/12 12:37 AM     Remind Me!  Send Private Message   Edit Post      
Quoting turbowop:

Have you even set the BISS on either TB? (the proper way) Base timing? Idle switch? Lots of things could be wrong. You should probably do some research.




no im just a big ugly fucking troll!!!!( yes i did)


and i hold 20 psi for awhile i can hear only a tiny bit of air rushing out shaft seal j pipe fixed...

i think im going to chagne egr then order fiav block off plate..

i sim. idle switch with dsmlink



~turbohair~


Edited by yeti (06/28/12 12:43 AM)

Posts: 797 | From: san diego california | Member Since: 10/13/10 | IP: (72.171.0.146) | Report this post to a Moderator

turbowop
Hard Snarker
1051/2000



Galant VR-4 org Post #: 1073495 posted 06/28/12 02:11 AM     Remind Me!  Send Private Message   Edit Post      
And are you sure your TPS is adjusted properly so that ECMlink is actually seeing a closed idle switch by logging it?

A bad FIAV won't cause stalling when the car is warm. It usually causes a really high cold idle and surging until the engine is fully warmed up.

I assume since you're in Kalifornia is the reason you want to keep EGR? Otherwise I would just ditch it. Hell, keep it on, but sandwich a block-off plate between the EGR valve and the intake manifold. Nobody will know and it's reversible for when you take the car in to be smogged.



-Mark

A face only a grocery shopper could love.
1051


Edited by turbowop (06/28/12 02:12 AM)

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yeti
Nope still sticky fingers


Galant VR-4 org Post #: 1073553 posted 06/28/12 02:19 PM     Remind Me!  Send Private Message   Edit Post      
yes ecmlink is reading 0% throttleat idle and idle switch is switched to 1, as for the fiav, i do get high idle and surge when cold but then once it heats up it stalls?

could it be the egr?

and i dont care about smog, i will try to block off egr, do i keep vacuum lines running to it?



~turbohair~

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turbowop
Hard Snarker
1051/2000



Galant VR-4 org Post #: 1073564 posted 06/28/12 03:10 PM     Remind Me!  Send Private Message   Edit Post      
If you want to keep it looking stock for the authorities, leave the vac lines. Otherwise, just do the full emissions removal.



-Mark

A face only a grocery shopper could love.
1051

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yeti
Nope still sticky fingers


Galant VR-4 org Post #: 1073611 posted 06/28/12 08:16 PM     Remind Me!  Send Private Message   Edit Post      
since the egr is blocked off it would act as if the lines were plugged?

will do, if the egr was bad the ecu would tell me right
?



~turbohair~

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turbowop
Hard Snarker
1051/2000



Galant VR-4 org Post #: 1073622 posted 06/28/12 09:39 PM     Remind Me!  Send Private Message   Edit Post      
Is your car a California emissions car? On teh federal cars, the ECU won't throw any code for the EGR. It doesn't even have any wires running to it. I'm not sure about Cali cars that actually use the EGR temperature circuit.



-Mark

A face only a grocery shopper could love.
1051

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yeti
Nope still sticky fingers


Galant VR-4 org Post #: 1073632 posted 06/28/12 10:30 PM     Remind Me!  Send Private Message   Edit Post      
Preety sure i got a cali car.

There IS wires in the back of the egr looks like a temp sensor..

Only thing i could think of that isnt working right is the isc but it test's good, ecmlink just does not read it right..
I checked wire to ecu and its still intact, maybe i should prob it and check for continuity?



~turbohair~

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turbowop
Hard Snarker
1051/2000



Galant VR-4 org Post #: 1073635 posted 06/28/12 10:32 PM     Remind Me!  Send Private Message   Edit Post      
I'm guessing you can just lose the EGR crap anyway since you have ECMlink.



-Mark

A face only a grocery shopper could love.
1051

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cheekychimp Galant VR4.org Moderator
Director of Housing and Urban Development, and carbon/kevlar balls


Galant VR-4 org Post #: 1073641 posted 06/28/12 10:54 PM     Remind Me!  Send Private Message   Edit Post      
Quoting yeti:

i do get high idle and surge when cold but then once it heats up it stalls?




How does the stall come about? If you leave it idling does it eventually just drop more and more revs until it stumbles and stalls or does the stalling occur during driving and if so, when exactly?



Getting old sucks ... but it sure beats the alternative !!!

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yeti
Nope still sticky fingers


Galant VR-4 org Post #: 1073761 posted 06/29/12 08:48 PM     Remind Me!  Send Private Message   Edit Post      
i have my throttle cable set right before it start opening the throttle so sometimes it catches it and it will stay at 1000( i have it set to 950, because any lower and it starts to stall)

so if i leave it idling and run inside chances are it will be dead when i come out, it start dropping rpms, more and more, also happens when im driving it will just drop all the way to 7 then catch and go to 1000 then drop all the way



~turbohair~

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rgeier11
sled driving mullet brain


Galant VR-4 org Post #: 1073889 posted 06/30/12 09:40 PM     Remind Me!  Send Private Message   Edit Post      
Have you done a resistance check on the ISC. I believe it should be between 28-32ohms, but I could be wrong.



1992 GVR-4 #649/1000 SOLD
1998 3000GT VR4 1of19 in New Zealand Green
1992 TSI AWD

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yeti
Nope still sticky fingers


Galant VR-4 org Post #: 1073913 posted 07/01/12 12:56 AM     Remind Me!  Send Private Message   Edit Post   
yes isc is good



~turbohair~

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