2G Idle Problems

[DsmKhan]

Look for some help
I did some maintenance on my 2G with a 1G motor I put new motor mounts I put new alternator power steering pump starter intake manifold gasket fuel injector O-rings fuel lab fuel filter, JM fab vacuum distribution I unplugged everything and plugged everything back start the car and it just revs up to 5000, my laptop is not connecting to the ecu and ideas??

 

[pauleyman]

Check throttle cable and check for leaks

 

[techboy]

Hate to ask this ... but was your laptop connecting to the ECU before?

 

[DsmKhan]

Hate to ask this ... but was your laptop connecting to the ECU before?

Check throttle cable and check for leaks

Check throttle cable and check for leaks

What am I looking wither the cable?? And yes it connected to the laptop before I did the work... I read that I could be the Ignition control module Not sure

 

[pauleyman]

What am I looking wither the cable?? And yes it connected to the laptop before I did the work... I read that I could be the Ignition control module Not sure

Make sure the cable isnt too tight. Physically check that the throttle is closed. You know how to do that?

 

[DsmKhan]

Make sure the cable isnt too tight. Physically check that the throttle is closed. You know how to do that?

I would have to take off the elbow to see if it’s closed

 

[steve]

I would have to take off the elbow to see if it’s closed

Or look at the cable where it attaches to the throttle body and make sure it's not pulling at all when nobody's foot is on the gas pedal. There should be slack in the cable before it starts to move the butterfly.

 

[95_gsx_2g]

What am I looking wither the cable?? And yes it connected to the laptop before I did the work... I read that I could be the Ignition control module Not sure

It's probably not the ignition control module (better know as power transitor unit). When they have failed on me it's usually the opposite of what your experiencing and more of a low iradic idle and poor driveability or no starts. I would definitely check the cable slack as others have said. Also make sure your idle speed controller is plugged in all the way.

 

[AWD-Tony]

5k YIKES!! Do you have ecmlink? Fix the connectivity issue first, then you can see if throttle is open without starting it so you don't have to remove the tb elbow.

 

[AWD-Tony]

What am I looking wither the cable?? And yes it connected to the laptop before I did the work... I read that I could be the Ignition control module Not sure

What's it saying when you try to connect?

 

[DsmKhan]

You must be logged in to view this image or video.

You must be logged in to view this image or video.

You must be logged in to view this image or video.

 

[DsmKhan]

Is this the Idle speed control sensor

 

[1990TSIAWDTALON]

Try a different port on the computer or check the USB Bus.

 

[1990TSIAWDTALON]

Is this the Idle speed control sensor

Yep, boy that thing has seen better days!

 

[AWD-Tony]

What am I looking wither the cable?? And yes it connected to the laptop before I did the work... I read that I could be the Ignition control module Not sure

You're checking to see if the cable is pulling on the throttle body. There are two bolts that secure the cable to the intake manifold. Those are for adjusting cable tension. You can also just disconnect the cable from the tb and start it. If it idle fine, you know the problem is your cable adjustment. Was it idling fine before you did all the maintenance?

 

[AWD-Tony]

Send a screen shot of configure connection.

 

[pauleyman]

I would have to take off the elbow to see if it’s closed

No. Just look at where the cable attaches. It should be obvious if throttle is closed or not. You can work the throttle by hand from 0 to 100.

 

[DsmKhan]

Would the ground wire make a difference I took it off from the block and put it on the back of the transmission mount

 

[AWD-Tony]

I'd put it back to where it was. I don't think that's causing your two issues. When I went through my car when I first got it back in October, the ground that runs along the harness over the tranny was completely off, and I drove it home 2 hours without an issue.

 

[DsmKhan]

You're checking to see if the cable is pulling on the throttle body. There are two bolts that secure the cable to the intake manifold. Those are for adjusting cable tension. You can also just disconnect the cable from the tb and start it. If it idle fine, you know the problem is your cable adjustment. Was it idling fine before you did all the maintenance?

Yes car idle fine before I did the maintenance. I plug back the idle speed control.. hooked up my laptop connected to the ecu Disconnect try to reconnect still won’t connect putting the ground wire back and see what happens

 

[1990TSIAWDTALON]

He needs to set a Com port on the laptop.

 

[AWD-Tony]

I think you're right Marty

 

[AWD-Tony]

Complete your profile page when you get a chance

 

[DsmKhan]

What’s a com port
And I disconnect the throttle cable from the throttlebody and still idling very high

 

[AWD-Tony]

I reread your original post. Are you saying it idles at 5k or that it only revs up to 5k? You replaced the intake manifold gasket. So did you take the throttle body off or left it?