i have a 91 vette 6spd with, tpis headers, random tech cat, side effects exhaust,3.45 gears,52 mm throttle body,ram air vortex,ported plenum to match accel lg tube runners also ported every tune up
part you can think of. heres the problem i had jesse burn me a chip and now my blm is 112 at idle, my plugs are black and my knock retard goes to 16 degrees when i nail it from 2 gear. never had this before the chip was done. brand new 5 o motorsport 21lb injectors heated o2 working but can it be lazy?? bosch crap. i tryed to get in touch with jesse but he emails me when i'm not on the computor then i email him then i don't hear from him for a day. i heard good things about him thats why i choose him. granted he's out racing and working on his car but i don't have that kind of experince. he's out racing and my car is in the garage. i'm playing email tag. i waited home all weekend for him to call and no call. very very dissapointed. maybe some else can help me out. thanks










































i have a 91 vette 6spd with, tpis headers, random tech cat, side effects exhaust,3.45 gears,52 mm throttle body,ram air vortex,ported plenum to match accel lg tube runners also ported every tune up you can think of custom chip,now i have 17x11's in the rear with nitto's 555r 315 35 17 get this the car has plenty of power with 80,000 miles and in first gear doing 10-20 mph i nail it can't spin the tires what's wrong with this?? the chip??? off hand how much hp/tg do you think i have.

 

We need more info. What fuel pressure are you running, whats your base timming set at, and what # sparkplugs are you running? These would help...

 

42 psi with hose on, 6btc rapid fire #5

 

sounds right, should be running pretty rich. How new is your fuel pump? A weak pump under the load of second gear could cause it to go lean for a second and cause knock.

 

stock pump but new now what

 

You get what you pay for. If you hire a fellow who is doing this part-time and is hundreds of miles away from your car, this is going to happen.

If you go to a full-time, professional, accomplished chip-tuner, you will get a much better and quicker job just because of the inherent advantages of having the car there on the dyno. Of course, that will cost you hundreds of dollars more.

 

well he's well known and alot of people are happy with him but i'm sure we will work it out.

 

Ok, scratching my head now....only other thing is you might have it too rich. I would set the fuel pressure at 43psi with the hose disconnected. You could have carbon buildup in the heads causing a hot spot and some knock. Run some fuel injector cleaner through it to help clean the heads and back the timming down 2degs for a while. With 80k on the car I assume its the original motor. I assume Jesse tuned it assuming you would run 43psi setting with the hose disconected. Thats probably why your plugs are black.

 

thats why i need to talk to him

 

Yeah, Jesse has always replied to my emails, he had a long weekend. I'm sure he will reply soon.

 

well he said the 112 blm had nothing to do with the chip he did?????????? bad 02 or lazy???

 

could be. Try an ac delco O2 sensor, If it dose not help return it and your out no $$. I still think your fuel pressure is to high and your computer is trimming out fuel.

 

yes i will but i heard jesse did this to more people than just me. now i'm out $250

 

Tuning long distance is often tough. Jesse is in a tough position sometimes because the slightest existing problem can be amplified with any prom change.I would check the basics first and get back to him. One thing that sets him apart from the rest of the"pros" is he doesnt turn his back after a couple of attempts to make good. He is a stand up guy. My buddy has an arizona speed and marine chip. Typical turn around time is 6 weeks to make a tweak to the chip. After $850 they told him don't send it back he is no longer burning proms.I agree with the earlier post. set fuel at 42.5 psi with vac hose disconnected. this will lean out a bunch.

 

okay, i will try that but my point is if you are going to perform a service for someone and it seems he has a lot of people, the least you can do is make it your number one priorty to return calls you got paid it wasn't for free. i sat in my house for two days waiting for him to call rather then email. but he wants to go racing thats great so i have to wait till he has time to get around to calling me. that tells me he don't care. maybe he cares if your his friend that races with him but who am i, just a very unhappy customer. at least pick up the phone and make a 10min call i would have been at ease. now who no's when he will email me thats even a project. i'm not trying to bad mouth jesse but i took everyones advise who bought from him he's great nice job jesse i can't even get a call back.

 

Your fp is way to high. You need to set your fp with line off. That thing has to be pig rich.

 

i had similar mods to my car before and it liked 42 with hose disconnected.
to get 42 with the hose on is like 50-52 with hose off. way too high...

if you lower it to 42 you will take care of most if not all of your problem.
and it certainly cant hurt.

 

also about the FP. Turn it down to around 42-43 with the vacuum line off and plugged. Then see what your BLM is. I have a lot of experiance with tuning speed density on a modified engine. In my opinion it is MUCH harder to tune than a MAF system when you start messing with VE tables. I'm sure Jesse will make good on the chip and help get to the bottom of your problem.

 

6spd.

I just again replied to two of your messages that you send over the evening. Then I found this thread.

Your post above and your email both describe that when you are at idle, the BLMS are at 112 Block Learn and 129 int with your 02 Sitting still at 557mV.

As I clearly expressed to you in your emails from prior to this weekend. That is tell-tale that your 02 sensor is not getting hot enough. It needs to reach at least 600* before the chemical process that needs to take place on its surface.

This is further shown as you describe when you touch the gas lightly and the RPMS increase the o2 starts to bounce as it should. That is as I explained due to the heat in the exhaust increasing, and the O2 then starting to work.

After explaining this to me, you said you wanted to get the chip sent back and redone. I replied respectfully back explaining the above scenerio, and expressing my concerns that until you get that 02 hot enough at idle you will continue to have problems. Its unrelated to the chip itself.

Also this is the first I learned that your pressure at 41psi was with the hose attached! That is WAY too high. I guess I assumed in your emails that when you stated 41psi, that it was with the hose off. That is not helping matters either. It should be ~41-43psi with the vacuum line off.

I have no problem at all re-doing a chip if I feel it will help. There are many members that have taken advantage of my free upgrades when either they change something or need it tweaked after a dyno session or equivalent. So please understand re-doing the chip is not a problem, but why waste my time and more importantly YOURS if the heat in the 02 is the root cause?

I sincerely enjoys seeing people excel with their setups. I offer the BEST tune and advice I can. I knew there would come a day that someone would be unhappy with a tune. Its almost inevitable since your relying on EVERY component in the car to be working to its specs. In this case your 02 sensor and fuel pressure. All I can do it offer my advice to get that sensor working and you will be running as you wish I am sure of that.


Seperate from you 6spd
I also find it appalling that some of the posters in this thread jump on the bandwagon of "distance tunes" are the same people that shoot me countless emails asking for advice on engine setups and troubleshooting (none tune related) items.

Pete Thanks for the comments and you are exactly correct! I will do what it take to make someone run the best I can. Most times its slam dunk, but in cases like above, getting the right information and the right questions answered is what is needed to get the person to were they need to be.

 

6SPD, There is another thing you need to realize, two things actually, if your gonna take the chance and mod a car from what the factory had it set too, then you also need to expect that things are gonna go wrong and everthing is not going to fit like it should.....While i never had the pleasure of working with Ski, i have read numerous posts on his work and he seems very reputable, and i would have no problem having him tune my car, if only he would move or come up to Connecticut and we can rent out the Dyno in my town....hint hint......Joking aside.....The above you will need to learn....the second thing you need to learn is stuff takes time.....whether its parts installation or tuning, people/shops are busy as hell...a few shops in my town turn down work they are so busy..Fast and Furious has set the world on fire with mods to cars......If they made everyone their #1 priority then they would be out of business...i am still waiting since July 2 to get my car tuned by the people who put my Porcharger in...I keep in contact with them but i learned to be patient....In the end with all the time and effort and patience you put into your car, you will be happy, hopefully...then again are any of us really happy? Ok so maybe we won;t be happy until we are going mach 1 with our hair on fire, but atleast we can be somewhat satisfied....