I bought a 92 loyale sedan 2wd around 2 weeks ago and shortly after i bought it, have had a consistent issue with it. Heres what is happening.
The cold weather has hit us here in denver and the problem has gotten worse. When i start the car first thing in the morning it idles erratically and stalls out multiple times. Before the cold weather it seemed to start fine in the morning anyway. The frustrating thing is sometimes it starts and idles fine, i drive it around no problem and all is well for the moment. Yesterday i cleaned my IAC valve with seafoam and also poured some into my throttle body. After i did that , i drove it around and thought that i may have possibly fixed this but as soon as i got home i turned the car off and then started it again and it wouldnt idle and would stall out. But when i was driving around it was great.
Here is what i have done to the car since i bought it. I have replaced the battery,plugs,wires,distributor cap and rotor (had to use a different screw for the rotor as i lost the original in the engine bay somewhere, could that have anything to do with it?), also replaced fuel pump/filter/relay, changed oil/filter, replaced coolant/thermostat, added heet and seafoam to my gas, also adjusted my accelerator cable as it was way off before.
I am getting spark/fuel filter flows great, doesnt seem to have any vacuum leaks, the engine turns over fine but wont idle most of the time, if i have my foot on the gas it wont die but it wants to and i notice a very distinct smell like something is burning after i force it to stay running. EGR problem?
Also the car takes a long time to warm up and cools down very quickly according to the gauge.
the only code the engine is throwing is the model of the car, nothing diagnostically , no check engine light at all. Like i said sometimes i start/drive it and it is fine but its a 50/50 shot, it wont idle as much as it will. any input would be greatly appreciated,
Funny thing is when i first bought the car the idle problem wasnt as bad or i dont remember it being such an issue as i was focused on other issues.
Edited by tech33, 05 December 2013 - 09:52 AM.