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Showing results for tags 'obd1'.
Found 3 results
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Having some issues with my '93 C1500 stalling and dying. It started last month when I was replacing parts to get my truck back on the road after sitting for a long time without much use. After I had managed to get the A/C blowing cold air again (freon, compressor pigtail and tensioner pulley) I noticed that the idle would slow and get choppy, even stalled and died once. I went back to work on it and ended up putting in a brand new Delco egr valve, IAC, fuel pressure regulator assembly, emissions tubing, intake adaptor, intake and egr solenoid. Even with all the parts the truck will still stall with or without the ac engaged and gets significantly worse with the egr solenoid plugged in. As in it stalls terribly at very light throttle since it looks like the valve completely closes when you hit the throttle just right. The engine is a jasper 350 crate with around 80k miles and Ive replaced every single sensor on it at some point or another. I should also mention that before this work was done I'd had the egr blocked off completely with a plate and an adjustable fuel pressure regulator in. I just wanted to get it back to stock once the stalling started so I could have a reliable truck again. At this point i'm worried the problem may be in the pcm or prom since it was running great most of the day with the solenoid unplugged then started stalling again after sitting for an hour turned off. I'm stumped -
New member. Just joined. I have a reasonably modified 2015 K1500 4WD Suburban and I was wondering if anyone had done or has info on switching it to an OBD2 system? I'm guessing engine and tranny will need to be replaced including the main computer. Has anyone done it? Does anyone have any opinions? The interior is super custom and I do NOT want a whole different truck. Money not an issue.
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im at my wits end with my 89 k2500 need some help.
topumpchump posted a question in Ask the GM Technician
I have a 1989 k2500 5.7 tbi with 171,xxx miles on it. I've had no issues with it until a month ago when the engine is under load it cuts out, as soon as I let off it back fires and everything is normal. I've replaced cap and rotor, plugs and wires, coil, egr valve and solenoid, map sensor, tps and fuel filter trying to track down the culprit. Ran the codes, it came back with code 34 map sensor. Unsure why, cleared the codes and it throws it again. The truck idles just fine just won't drive well. I should probably also include that the truck has no cat anymore and is 3" straight pipped back to a flowmaster. Unsure if that will make any difference with help as it had had this set up for over a year prior to any issues. Please help, I'm not used to these tbi systems but more familiar with old school engines that only need suck, blow, bang to run correct.
