Sun out bright today so I decided to take the 6 out of the garage for a couple of hours , I noticed a slight hesitation in the throttle when pulling out (1 second) , didn't happen every time just two or three times during the outing , I only use shell premium gas in my car usually same station close to home unless out of town . the car otherwize it performing awsome lots of power engine sounds great, any ideas what I should take a look at ,I am running a code3 pully,NW CAI and have not got a tune yet.

Thanks Howard.

 

2 things come to mind.
1 fuel filter? maybe time to replace it?
2 lean conditions due to the colder air and the mods you have with no tune.
tony has told me he will be back in atl in the near future for a track day and some more tuning. ill be going back for a retune due to some more mods being done. ill let you know when it happens

 

Thanks Krazy let me know when you find out..I'll try to make it this time , I had thought about changing the filter so i'll go ahead it's time anyway

 

Our cars have a great delay in the thruttle which is why I have been trying to get the throttle response to improve.

The motor will hold you back for traction, esp, and motor issues, especially if it thinks it needs to. A data logger will show you most of the reasons if you have a hickup.

Woody

 

Woody a data logger is on my list to get one of these days, got to save some coins,,,

 

trying to understand the dashdaq and zt-2 as we speak howard. its more complicated than i realized!!

 

Just a thought here ... have you attempted a throttle reset ?

 

Stogey I actually thought of that this morning so I reset the throttle ,the trip to work was normal NO hesitation so far>>>> but before it was real speratic so we will see

 

Howard, every now and then, mine does that. I shut it off, and re-start, and it runs fine. Does it on cold mornings...never have any problems after that...

 

Doc it was a pretty cool morning , In the 20's Burrrrrr maybe the 6 was trying to tell me it didn't want to be out of the garage.....

 

My sister's 2004 is doing the same thing. When the car is warmed up, it stumbles at stop lights and has to be restarted. One dealer said it needed a new fuel pump. It only has 13,000 miles on it. It is in Florida, but it did it in 90 degree weather as well as the teens now. I thought if it was the fuel pump it wouldn't run at all.

 

Could be the first symptoms of the DREADED Mystery No Start ! A partially clogged fuel filter, or a vacuum leak ... More information please !!!

 

Has anyone figured this out. Mine will hesitate when i try to take off.usually around 30 mph. I have replaced fuel pump and filter. I was getting a code for throttle position sensor so i replaced throttle body code went away. I have replace crank position sensor i used bosch. I went cheap on the cam sensor then had to replace it with bosch, It was leaking oil into my plug. I have done a tune up replaced all coil packs, plugs and wires. I have had my skreem deleted. Im out of ideas.

 

Try a sprint booster.

 

? What makes you say this? The car is having a hesitation issue. Getting that fixed should be first. The closest thing to your suggestion might be a throttle pedal acting up. So, help me understand why the spring booster advice? Unless, the spring booster is less expensive than a throttle pedal, and it might make it better? That seems to me a patch until the pedal fails completely (if that pedal is his issue).

OP, was the car running much better before you noticed the 'hesitation', or did it slowly creep up? How many miles on the car? You said you had oil leak into your plug, what plug (spark or electrical)?.


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It ran great when i got it. Then it started with the hesitation. Its almost like i let my foot off of the pedal. It had 83,000 miles on it when i got it. So i replaced fuel filter since i was under it went ahead and put fuel pump on. That didn't work so i changed cam and crank sensors. Didn't help. I started getting a code for throttle sensor. So i ordered a throttle body from needswing.Ran fine for a few weeks. but started getting multiple misfires. Checked my coil packs 5 of the 6 were cracked. Thats when i did the tune up. I was having problems with my navigator vacuum lines so i replace all of them on the crossfire to. Today i pulled the air box off trying to find a leak. Noticed the mass air flow clip wasn't tight. The elbow was just moving around. Had to put a zip tie on it to tighten it. So far it hasn't hesitated. Love this car but its being difficult.

 

The cam position plug. The electric connection side of the sensor had oil in it. My car has 91,000 on it now.

 

The sprint booster removes any delay in the drive by wire accelerator system.

 

Yeah, that's what the sprint booster seller says. IMHO I do not think it is the problem this member is having. The sprint booster is (IMHO) nothing but a shorter throw of the pedal to max throttle position, period.


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Thanks for posting this additional information. There is a lot things that can be causing this given the additional information but I (again) do not believe this issue is corrected by a spring booster. You had a throttle body code and some indications of oil in the wiring. PLUS you swapped a lot of parts that didn't correct the issue. IF you become convinced that this might work (the booster), see if you can swap one in and are happy with it. I think you've thrown a lot of money at it already without success (and your the best judge of this). At this point, it could be a lot of little things, or one thing that hasn't been properly diagnosed. Where did that code come from (test equipment used)? IF it is a generic OBDII reader maybe someone with a better (more compatible) reader locally, can get a more in-depth reading? That's about all I can suggest, I hope more ppl can chime in with suggestions that par more with the change in performance your having. Good luck!


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