my car idles (and holds)at a pulsation 650-900rpms.
I did the LCD tps thing still not much difference. The problem was a combo of bad hoses a cracked gasket but the major problem was at the primary injectors the O rings and Gromments where all in bad shape. now whenever I take a hard turn or put in reverse my car chokes out or idles dangerously low . this also happens when my I press down on the clutch and brakes while in a turn. I know this sounds like a bad BAC valve but it is not! I have two and both are good. also I think this car has it's own custom made power steering pump. The previous owner had one made for her. and I think thats why my car orginial idled at 1000-12 rpms I'm going to follow up and check out secoundary injectors. I not expection a complete and ominous solution from anyone here. just some clues or a point in the right direction. This car is driving me up the wall and I need some ideas. 86 GXL |
i think you're on the right track, but you should look at the backup switch, i'm not sure but the ecu might get that signal too
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Originally Posted by j9fd3s' post='842102' date='Oct 22 2006, 09:23 AM
i think you're on the right track, but you should look at the backup switch, i'm not sure but the ecu might get that signal too backup switch? I managed to take it to a shop and one of the guys told me he adjusted the BAC valve. also he said if the problem remained he said I may need a new IAC switch. (I have no idea what a IAC switch is) it works alittle better now. the idle doesn't bouce as much but it still chokes out on hard turn but not as often. I'm I running in circles here or what? |
chokes on a hard turn?
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Originally Posted by j9fd3s' post='842472' date='Oct 25 2006, 02:43 PM
chokes on a hard turn? yup chokes ouf on a hard turn. also If I place the car in gear and leave my foot on the clutch the RPMS decrease as well. |
Originally Posted by Dev' post='842474' date='Oct 25 2006, 03:03 PM
yup chokes ouf on a hard turn. also If I place the car in gear and leave my foot on the clutch the RPMS decrease as well. oops thats OUT not ouf. |
bad afm maybe? the afm door is affected by gravity....
could also be a clogged fuel pump filter/sock my 91 had stalagmites growing from the fuel pump assembly..... or is that stalagtites? |
I believe that would be stalactites. Carry on.
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Originally Posted by Baldy' post='842556' date='Oct 26 2006, 08:14 AM
I believe that would be stalactites. Carry on. excellent! thanks https://www.nopistons.com/forums/pub...#>/biggrin.gif |
Originally Posted by j9fd3s' post='842601' date='Oct 26 2006, 10:51 AM
Mechanics around here keep refering to a IAC (idle air control valve) which I belive is the BAC valve I looked in my haynes manual and found nothing about it. I'm I wrong on this one? I don't know what AFM means ok I'll check out the fuel pump and swap out the O rings and grommets in the secondary injectors thx again |
Originally Posted by Dev' post='842638' date='Oct 26 2006, 03:36 PM
Mechanics around here keep refering to a IAC (idle air control valve) which I belive is the BAC valve I looked in my haynes manual and found nothing about it. I'm I wrong on this one? I don't know what AFM means ok I'll check out the fuel pump and swap out the O rings and grommets in the secondary injectors thx again idle air control valve or bypass air control valve are two names for the same thing AFM = air flow meter, its on the bottom side of the airbox, aluminum thing |
Choking on a hard turn sounds like the engine bogging down due to the load from the P/S pump to me.
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Originally Posted by CGeek2k' post='843976' date='Nov 4 2006, 02:12 PM
Choking on a hard turn sounds like the engine bogging down due to the load from the P/S pump to me. yeah I'm checking out the P/S pump right now! I defintly have a leak somewhere. I haven't checked out the fuel pump yet. I've been out of town. |
Originally Posted by Dev' post='844889' date='Nov 11 2006, 10:48 AM
yeah I'm checking out the P/S pump right now! I defintly have a leak somewhere. I haven't checked out the fuel pump yet. I've been out of town. I put in the fuel pump and runs smoother now and has a better response. I should have done that waaayyyyyy sooner!! I urge everyone to do this!! and no there were no stalagtites https://www.nopistons.com/forums/pub...IR#>/smile.gif I had alittle help this holiday and discovered somthing new. I was checking out my PS for leaks only this time I had someone at wheel continuely turning it. and I got shocked! so now I think I have a short somewhere. I'm checking all my grounds. as I said before one step forward and two steps back! |
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