Hesitation w/ throttle barely open - Page 2

kublah · 08-03-2005, 07:25 PM

SOOOOOOOOOOOOO much better...

All the hesitation is gone, my idle is back to where it should be, and I couldn't be happier. Time to go for a drive...

DeleriousZ · 08-03-2005, 07:45 PM

awesome man, good to hear you got her fixed.. now lets hope i can get mine fixed too and we'll be golden

kublah · 08-03-2005, 09:44 PM

Good luck with yours, I'm sure you'll get it straightened out.

I didn't quite realize it until today when I finally got to drive it around for a while with it running pretty much perfectly, but this car has really gotten into my head. I had a long dream last night about getting it back from the shop where it went back and forth between running perfect and hardly running at all, and then actually catching on fire a couple times. I was on the freeway and there were accidents happening all around me, and I was getting really paranoid about other people hitting me or vice versa. If something were to actually happen to it I would be really upset, and I'm not used to that kind of emotional attachment to my cars...

k3smostwanted · 08-04-2005, 03:06 AM

another one is born!!!

anyways, did the mechanic happen to say Throttle Position Sensor (TPS) sensor??? was that the screw?

kublah · 08-04-2005, 05:25 PM

No, the TPS was fine. What I understood was that it was a screw somewhere in the throttle body itself that was missing and allowing something in there to move independently of wherever the throttle was. How this only affected the engine at 2K and slightly off idle is beyond me, but that's why I'm not an engineer.

k3smostwanted · 08-05-2005, 02:05 AM

Quote:

Originally Posted by kublah

No, the TPS was fine. What I understood was that it was a screw somewhere in the throttle body itself that was missing and allowing something in there to move independently of wherever the throttle was. How this only affected the engine at 2K and slightly off idle is beyond me, but that's why I'm not an engineer.

throttle adjustment screw was missing?

kublah · 08-05-2005, 03:27 AM

Well, they used the term "throttle body set screw" when I was talking to them about it on the phone. The work order reads "Left side throttle linkage screw missing" and "Replace left set screw as needed". I didn't have them get into any more detail than that.

k3smostwanted · 08-06-2005, 12:57 AM

Quote:

Originally Posted by kublah

Well, they used the term "throttle body set screw" when I was talking to them about it on the phone. The work order reads "Left side throttle linkage screw missing" and "Replace left set screw as needed". I didn't have them get into any more detail than that.

ok...

probehtr300 · 08-06-2005, 05:11 PM

can you tell which screws or w/e are new ? mabe some pics so if anyone experiances that problem theyll know what to look at.

kublah · 08-09-2005, 06:10 PM

Well, the car was back at the shop again today with a bad injector, so I had them show me what they replaced.

The screw is on the transverse rod that runs across the front of the engine and opens and closes the valves inside the throttle bodies. Just to the inside of the springs where the rod meets the throttle body, there is a little bracket with a connecting phillips head screw that is oriented vertically when the throttle is closed. That's the one that was missing.

I couldn't find a good pic, hopefully that explains it.

k3smostwanted · 08-10-2005, 02:51 AM

Quote:

Originally Posted by kublah

Well, the car was back at the shop again today with a bad injector, so I had them show me what they replaced.

The screw is on the transverse rod that runs across the front of the engine and opens and closes the valves inside the throttle bodies. Just to the inside of the springs where the rod meets the throttle body, there is a little bracket with a connecting phillips head screw that is oriented vertically when the throttle is closed. That's the one that was missing.

I couldn't find a good pic, hopefully that explains it.

yeah...i see what your talking about now. but that one isnt my problem but my symptoms were so very similar. damn Nissan and their bigillion sensors and crap...

kublah · 08-12-2005, 03:46 AM

Quote:

Originally Posted by k3smostwanted

damn Nissan and their bigillion sensors and crap...

You can say that again, but I guess that's the price we pay... I was pretty surprises when I found out what it actually was. It just didn't seem like something like that would cause the problems that I was having. I was totally expecting it to be a sensor or something like that.

oakleyp2 · 11-10-2005, 10:53 AM

i had a slight off idle hesitation and poor performance with my 1990 300zx na 2+2 that i just bought. turned out to be the coolant temp sensor connector was all gunked up.

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