High Idle after GPR install?
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Joined: Oct 2003
Posts: 17,799
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From: Ashland City, TN
High Idle after GPR install?
I'm not sure if our trucks are supposed to have a high cold idle.
but, it never has before for me.
I installed the stancore, and now it started and idles at 1000 RPM's. whats the dilly?
but, it never has before for me.
I installed the stancore, and now it started and idles at 1000 RPM's. whats the dilly?
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Joined: Oct 2003
Posts: 17,799
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From: Ashland City, TN
I stopped it and turned it on in the middle of that. and it stayed high. so i left it run for a few mins, and it smoothed out.
It never did that when I changed my injectors. So i have no idea why a GPR change would have done it.
I'll see if it does high idle on cold start again tomorrow.
It never did that when I changed my injectors. So i have no idea why a GPR change would have done it.
I'll see if it does high idle on cold start again tomorrow.
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Joined: Oct 2003
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From: Ashland City, TN
chip idle is 1100
truck started with idle at 1000 yesterday.
and started today with a 900 idle.
both are high.
No idea what the deal is. Oh well. Maybe GPs workign so good it is making it run better at startup.
To bad for all the blue/white smoke i still get.
truck started with idle at 1000 yesterday.
and started today with a 900 idle.
both are high.
No idea what the deal is. Oh well. Maybe GPs workign so good it is making it run better at startup.
To bad for all the blue/white smoke i still get.
Lead Driver
Joined: May 2007
Posts: 8,608
Likes: 13
From: Belair md
pcm strategy might make it idle higher with cold oil, but the relay swap and glowplugs have nothing to do with it. your truck's pcm has no idea what teh plugs are doing. it simply tells the relay to turn on or off.
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Joined: Oct 2003
Posts: 17,799
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From: Ashland City, TN
Didn't do it after chip install at first either. Didn't do it till GRP install.
That's why i am so confused about this.
That's why i am so confused about this.
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Hotshot
Joined: Jun 2007
Posts: 10,008
Likes: 7
From: Austin, TX
you have also been keeping it plugged in to get it to start up lately. i know when its really cold my truck will idle at probably 800-900 rpms until it starts to warm up some and my GPR hasn't worked for the last probably 2 years!!! haha. gotta love texas!! try unhooking the batteries for a little while though and hook them back up after about 30 minutes and see what happens, but that probably won't change anything..
Hotshot
Joined: Jun 2007
Posts: 10,008
Likes: 7
From: Austin, TX
Its probably the EOT. when you plug in your block heater not only does the coolant stay warm, but so does the oil. started my truck this morning and looked at the idle rpm and it was close to 900 rpm and it was like 45* maybe outside???? maybe 50*.. i'm not sure but it was kinda cool outside
