Re: 1988 Beretta misfire when cold and random acceleration
Posted: Wed May 23, 2018 5:51 pm
Hello. Thank you for the advice, i didnt see those two bolts because of the aftermarket radio brackets. They connected cables the wrong way, this was the reason for the radio resetting each time after ignition got turned off, thats fixed now.
Alright, too bad that there is no other way to bleed the cooling system, but now i understand why. I installed a new thermostat today (the preowner removed the thermostat completely, not a surprise that it didnt get up on temperature), and replaced the coolant temp sensor just as precaution since i had a new one anyways. As soon as you fill the thermostat housing full with coolant, because of the height it gets pushed back into the reservoir. I guess it just needs the bled out like it happened with the Corsica.
The shipping to Germany makes the Monitor 2000's very expensive unfortunately. Also i couldnt exactly find ones for a 88 Beretta. Only "89 GM Models".
I didnt know that the TPS was always on tension when it gets installed. So i just lined it up with the edges of the throttle body housing, like the other one was. I am not sure if thats very correct, and i'd prefer to sort of check the value in % of how its set and how it needs to be set. Is it possible to maybe read out those values with a GM OBD I adapter to OBD 2 ?
The IAC valve seems to be working. I cleaned it and where it seats up with a dremel tool.
Today i also checked the whole system with my fog machine for vacuum leaks and found exaclty 4 leaks. 1 fixable, the other 3 i am not sure about:
Exactly the same thing happens on my Corsica, steam is coming out where the rod on the EGR valve goes up to the membrane. Is that normal when the engine isnt runing?
And the other two leaks are in the throttle body housing, actually exactly on the rod of the throttle. So fog comes out between the TPS and throttle body housing, and on the opposite side between the housing and the throttle cable. I dont think this one is fixable without disassembling the whole throttle body, so i'd probably just leave that as is. But the thing with the EGR valve i am curious about?!
Also another question. On my digital instrument panel the display for mileage etc wasnt working, it looked like the lines didnt show up as they should. Since i had a half pulled apart digital cluster, i just swapped over the display. Its still showing up the lines etc badly as before. Are those displays known to go bad, or is that an issue in the whole motherboard of the instrument cluster?
Also is the mileage saved in the ECM or the digital cluster?
Greetings
Alright, too bad that there is no other way to bleed the cooling system, but now i understand why. I installed a new thermostat today (the preowner removed the thermostat completely, not a surprise that it didnt get up on temperature), and replaced the coolant temp sensor just as precaution since i had a new one anyways. As soon as you fill the thermostat housing full with coolant, because of the height it gets pushed back into the reservoir. I guess it just needs the bled out like it happened with the Corsica.
The shipping to Germany makes the Monitor 2000's very expensive unfortunately. Also i couldnt exactly find ones for a 88 Beretta. Only "89 GM Models".
I didnt know that the TPS was always on tension when it gets installed. So i just lined it up with the edges of the throttle body housing, like the other one was. I am not sure if thats very correct, and i'd prefer to sort of check the value in % of how its set and how it needs to be set. Is it possible to maybe read out those values with a GM OBD I adapter to OBD 2 ?
The IAC valve seems to be working. I cleaned it and where it seats up with a dremel tool.
Today i also checked the whole system with my fog machine for vacuum leaks and found exaclty 4 leaks. 1 fixable, the other 3 i am not sure about:
Exactly the same thing happens on my Corsica, steam is coming out where the rod on the EGR valve goes up to the membrane. Is that normal when the engine isnt runing?
And the other two leaks are in the throttle body housing, actually exactly on the rod of the throttle. So fog comes out between the TPS and throttle body housing, and on the opposite side between the housing and the throttle cable. I dont think this one is fixable without disassembling the whole throttle body, so i'd probably just leave that as is. But the thing with the EGR valve i am curious about?!
Also another question. On my digital instrument panel the display for mileage etc wasnt working, it looked like the lines didnt show up as they should. Since i had a half pulled apart digital cluster, i just swapped over the display. Its still showing up the lines etc badly as before. Are those displays known to go bad, or is that an issue in the whole motherboard of the instrument cluster?
Also is the mileage saved in the ECM or the digital cluster?
Greetings