Help Again

[whiner]

Does anyone know of anybody that works on the TB in the Las Vegas area.
I am having an issue I just cannot find.

 

[whiner]

Anyone???

 

[RegalT-type85]

What seems to be the issue?

 

[whiner]

Car will smoke at idle when started untill the car is driven then just goes away, even when sitting at a stop light.
Also when driving for about 15-20 minutes the car will start bucking an feels like it is going to stall out when braking and sitting at a stop. If I put the trans. in neutral it will stop bucking. I have just installed all the items in my sig. Prior to that the car was sitting for almost 3 years. I also did the spring cleaning recommendation.
I am still getting used to and trying to learn the scan master. So far knock has not been a problem. I do know the Throttle position sensor is readling .44 at idle and I have seen it go to about 3.00 when driving. The O2's when driving are between 300-805, when let off the gas and coasting the O2"s go to zero. This is about all the info I have right now.
Any suggestions. By the way I have the 92-93 octane TT chip and running 100 octane gas.

 

[usetaboost]

run that gas out and put 93 back in the tank and put in a denso 02 and see what's going on then. How long have you been running 100?

 

[RegalT-type85]

IS there any raw fuel smell ? I agree with Farva, Swap out your O2 and put some good 93 gas. Denso or NGK ...anything but old tech(bosch) from what i can tell(just got my Scanmaster also) your o2 should be above 750mv.
Also, your 100 octane might be the problem( crazy i know) I'm not 100% on this but I think if you run 100 you need the chip/tune for 100. IMO


What is your TPS at WOT? Sure you know, but just in cause. The motor doesn't need to be running to set the TPS idle/WOT.
Also for the smoke, if the o2 doesn't help, could be soaked breather(if open type) or many other things but don't mean to scare you lets do one thing at a time. Hope its just an O2 buddy

 

[whiner]

One problem out here is we do not have 93 octane. Only 91 and the goes to
100 octane. I just put the 100 octane in when I got the car running about
2 weeks ago. So still have about 3/4 tank.
I thought about the O2 sensor from watching the readings on the scanmaster.
I will try that since they are not to expensive and see what happens. Have not gone WOT yet, would like to get it running better first. I will let you know. Thanks for the suggestions.
Also where did you get your Denso O2 at, & does it have the right connector?

 

[usetaboost]

I got the denso 02 from arnolds motor supply for 22 bucks. THis was the cheapest I could find. Doesn't hurt to call around in your area.

We don't have REAL 93 around here so I just use the 91. We got a few ethanol stations around here but I don't think I have enough injector to use the 98 blends. If you plan on alky injection, 91 octane isn't really going to be a factor. I'm running 22lbs of a windshield washer pump and washer fluid ....i plan on changing this setup a bit during the winter ressurection.

 

[streetknight]

If the 100 octane is unleaded, it shouldn't be an issue....see what your BLM's are at when it's acting up and going down the road...never hurts to put a new o2 in it, but I would gather more data

Sent from my DROID2

 

[whiner]

Just ordered the denso O2 sensor.
The 100 octane is unleaded gas.
We will see what happens!!!

 

[RegalT-type85]

Sent from my DROID2

Nice droid sir YOU GOT ROBOT ARMS BTW!!!!!

Denso is a single wire(why it's pretty cheap but well made even so) the heated O2 (if you got the kit from casper's) to replace that O2 is 60$. Which If you ask me both perform about the same.

As for octane, sorry I didn't know.

Let us know if the O2 helps any.

 

[whiner]

Just looked, O2 sensor looks fun to change @ the angle it is in there.

 

[RegalT-type85]

A good wrench or What i did was just Get a DEEP socket and turned it with the wire run through it before hand. Then TQ it down the same way, just put a little E tape on the wire to protect it better. Then you reset the ECM however you like.

 

[usetaboost]

or you could buy an 02 socket for 8 bucks

 

[RegalT-type85]

or you could buy an 02 socket for 8 bucks

very true Farva

 

[whiner]

So the new O2 sensor is in. Car idles smoother and O2 sensor reads around 740-760 at idle when warmed up. Still the engine is not running right. Boost guage shows 15psi but I swear the car only feels more like it has about 5psi of boost when I get on it. I have replaced all my vacuum lines, but I do not have a vacuum tester. The scanmaster still shows no knock, which is very suprising to me. Any other suggestions.

 

[RegalT-type85]

Your boost read 15psi at WOT? whats your vac at idle? Where did you tapp your boost gauge into?
post all your readings car off/idle.
Could be a dirty air filter, I notice this same crappy feel, swapped out my air filter with a clean spare one(also dryflow) fixed it for me. Also what's your fuel psi at WOT/IDLE?

Recheck your Vac lines not for leaks but how they are routed. Also your wires, check for grounded ign wire,slighly bad wire could give you this feel.

 

[nickygn]

are you using the stock gauge ?

 

[Scott Atk]

Is this Chris P? Sorry dude, I've been super busy. I'm good now though. I can check it out tomorrow if you're still interested. Thanks, scott

 

[whiner]

Yep this is Chris P. I have to work on Saturday but I am available Sunday or next weekend.
I was wondering if you were still in Vegas or got transfered.