94 K1500 Idle Surge - Page 2

Impulse · 12-03-2008, 04:39 PM

Quote:

Originally Posted by leolkfrm

Actually, the egr must be present for inspection if it was there when built. You don't need the computer read like 96 and later.
You need a scan with a good scanner not a code reader, Are you in upstate as in western or up the northway?

Central NY. In the Utica/Rome area. I know I need a scanner, the problem is that I do not have one.
For my 93 Eclipse I hook the obd port to a data cable and run it into my laptop to tune it. Is there any similar data cable or interface for these trucks?

bradrhale · 12-03-2008, 05:56 PM

a tps will cause a high idle. this can be checked by checking voltage across it. it should be more than .2 volts and less than .4, i believe. a tps is not going to cause a sporatic idle. find someone with a good code reader, not autozone, that will read stored codes and see what turns up.

Impulse · 12-04-2008, 08:55 AM

Used the backyard method with jumpin pins A and B. Threw a slew of codes but this was after screwing around under the hood. So I reset the ECU and I'll check for new codes this evening.

leolkfrm · 12-04-2008, 09:25 AM

Quote:

Originally Posted by Impulse

Central NY. In the Utica/Rome area. I know I need a scanner, the problem is that I do not have one.
For my 93 Eclipse I hook the obd port to a data cable and run it into my laptop to tune it. Is there any similar data cable or interface for these trucks?

I would think that depends on the software you are using. I know mud has been using one for obd2

Impulse · 12-04-2008, 01:45 PM

Leaning twords the MAP sensor.

boatz068 · 12-04-2008, 07:21 PM

did you check the fuel pressure?

Impulse · 12-04-2008, 08:00 PM

Checked after the fuel filter was replaced and it checked out.

Impulse · 12-08-2008, 03:11 PM

And it wasn't the MAP sensor.... Any other ideas? I'm ready to do a compression test and see if the HG is shot.

leolkfrm · 12-08-2008, 06:54 PM

time to get a good diagnostic scan, it may prove cheaper and easier in the long run

Impulse · 12-08-2008, 09:56 PM

Im pulling the codes backyard style, and counting the flashes of the CEL as per the Haynes manual. I reset the ECU after I put the MAP sensor in, so I'ma drive it and see what it throws.

12-08-2008, 06:54 PM	#19
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,300	time to get a good diagnostic scan, it may prove cheaper and easier in the long run __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

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12-03-2008, 05:56 PM	#12
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,024	a tps will cause a high idle. this can be checked by checking voltage across it. it should be more than .2 volts and less than .4, i believe. a tps is not going to cause a sporatic idle. find someone with a good code reader, not autozone, that will read stored codes and see what turns up.

12-04-2008, 08:55 AM	#13
Impulse Full Member Join Date: Dec 2008 Posts: 10	Used the backyard method with jumpin pins A and B. Threw a slew of codes but this was after screwing around under the hood. So I reset the ECU and I'll check for new codes this evening.

12-04-2008, 01:45 PM	#15
Impulse Full Member Join Date: Dec 2008 Posts: 10	Leaning twords the MAP sensor.

12-04-2008, 07:21 PM	#16
boatz068 Full Member Join Date: Jun 2008 Posts: 46	did you check the fuel pressure?

12-04-2008, 08:00 PM	#17
Impulse Full Member Join Date: Dec 2008 Posts: 10	Checked after the fuel filter was replaced and it checked out.

12-08-2008, 03:11 PM	#18
Impulse Full Member Join Date: Dec 2008 Posts: 10	And it wasn't the MAP sensor.... Any other ideas? I'm ready to do a compression test and see if the HG is shot.

12-08-2008, 09:56 PM	#20
Impulse Full Member Join Date: Dec 2008 Posts: 10	Im pulling the codes backyard style, and counting the flashes of the CEL as per the Haynes manual. I reset the ECU after I put the MAP sensor in, so I'ma drive it and see what it throws.