I was wondering how you can adjust the idle (choke) on a GSR motor.
The Car wont run on its own when its cold. I have to keep giving it gas until it warms up, and it must be fully warmed up, then it will idle perfectly fine.
Not problems at all.

Any ideas i what i can adjust to fix?

Thanks

 

Bump?

Any ideas?

I dont get it, normally it should idle higher until it warms up right?

 

Hmm.. I had this happen on my LS swap. My engine temp sensor was unplugged and and wouldnt run unless i held the gas. May be worth looking into.

 

ETS is the one wire underneath the right side of the head right?

Its hooked up, plus wouldn't my temp gauge not work?

If it makes a difference or not, My fan switch doesnt work so the fans are hardwired to my AC button on the dash.

 

The temp gauge and temp switch are two different items.

You can increase the idle rpm by adjusting the idle screw on the manifold in front of the throttle body. Or you can tighten the throttle cable.

 

Is the tempo switch the fan switch?

and i did adjust the throttle itself, but then it idle too high when it warms up.

 

Shouldnt make a difference if they are hardwired or not. The ETS is different from the CTS. I do believe it is a one wire sensor. My clip was broken so it barely stayed on. Same with my CTS. That might not be your problem though since yours is connected.

 

it also shouldnt make a differience that i have my heater hoses looped due to a bad heater core right?

 

Was the problem there before you looped the hose, or after?

 

I never had this problem with my LS. And the lines were looped with it

 

Could this be because the two vacuum solinoids on my intake manifold arnt hooked up?
haha
forgot to mention that part

 

Check the IACV.

 

Yeah, IACV would be my next guess. Ive got an OBD1 swap now, and my vacuum solenoids arent hooked up either.

 

I'm gonna do the iacv next. Gotta get this fixed. And I need to wire up My solenoids. Where do I run the wires too?

 

Cleaned my IACV and hooked up my Heater.

The valve didnt do any good. Tho the intake vacuum ports were pretty dirty.

The car literly wont run when its first first started up in the morning without giving it lots of throttle.

Kinda thinking timming, but its good. 12*.

You do check the timming on a GSR the same way as an LS correct?

Whats next? Once i get it warmed up, it purrs like a kitten.

 

What ecu are you using? How does it idle once its warmed up?

Btw don't tighten the throttle cable to adjust idle thats a bad suggestion.

Checking the idle:
You can use the screw on the top of the throttle body to adjust idle. Proper way to adjust is to fully warm up the engine first. The unplug the IACV while its running and the rpm should drop to about 500 rpm. If it dies or stays higher than 500 rpm then something is wrong and you have a vacuum leak or its out of adjustment. If it dies than you can use the screw on the top of the tb to adjust it to 500rpm. Once you got it set turn off the car and plug the IACV back in. reset the ECU by disconnecting the bat for 30 seconds and your done

 

Awesome advice! I'm going to do that right now! Once it warms up It idles fine. Around 1000-1200. Everyonce and a while it will bounce from 800-1500 Ish. Could the iacv ego bad? And right now I'm running a pr-4 ecu. Obd-0 everything while I'm breaking in the motor

 

Ok. So my car will not idle with the iacv disconnected. At all. I unscrewed the idle screw on the t body all the way out and it still wouldn't idle with it disconnected. Help?

 

got the car nice and warm.
disconnected the iacv. it dropped to around 800. Turned the screw till it dropped to about 500. Hooked valve back up, cleared ecu, and let the car cool down. Started back up and it wont idle until it warms up .

So after everything i am back to the same spot.

im confussed. what is that other valve under the t body, with the coolant hoses running to it?

Maybe that need cleaning?

 

Oh damn I forgot about that guy under the throttle body. I forget because some engines don't have that. What that thing does is when the car is cold its suppose to let more air in and then as it warms up the valve closes. That could cause it to not idle correctly cold vs warm. Honestly since you were able to adjust the base idle already and it still behaves the same it sounds like the IACV is working. though it should idle at around 700-800 rpms when its warm but your also running the wrong ecu so this could also cause problems.

As a side note the OBD-0 ecu isn't able to correct for varying conditions as readily as the OBD-1 & OBD-2 ecus.

 

I know that obd-0 is killing me right now.
and i will be fully converted very soon.

just need a little bit more cash.

Believe me, this GSR is sloooow right now.

Gotta keep it under 5 for the break-in and my itbs arnt hooked up, and i have a 9lb flywheel. Haha, i dont have any bottom end right now.

I think im going to take that apart next and clean it out. It sound like thats the "choke" im looking for!