Spark knock using the Hypertech Power Tuning
Thread Starter
Pro
Joined: Apr 2003
Posts: 568
Likes: 12
From: Jacksonville Florida
Spark knock using the Hypertech Power Tuning
Thought I would try out the unit, since I got it at a good price on Ebay. To be3 honest, I am pleased with the Tranny shift firmness and RPM limiter, just went to 5900 with that. My car is a 94, Auto with 2.59 differential.
I experienced very significant spark knock using the Power Tune feature, no knock using the stock tune. I expect it has a pretty aggressive advance setting, but I was still surprised by the amount of spark knock.
I am running a 52mm throttle body, K&N Filter w/open lid, TB Bypass, 160 Thermostat.
Is there some underlying issue that I should take a look at that makes me susceptible to spark knock with the Hypertech "canned tuning" ? The car was babied before I bought it. (The TB was only opening up to 2/3 WOT due to cable misadjustment). The car has 82k, probably original wires and maybe even plugs. I can definitely hear static on AM stations, so I expect to replace wires and plugs this month. Any ideas, oh wise ones? (Aside from canning the Hypercrap and investing in LT1 Edit. That will have to wait until I and my ignorance are a little less dangerous to the car and my checkbook...)
Thanks in Advance,
:cheers: :steering: :cheers:
I experienced very significant spark knock using the Power Tune feature, no knock using the stock tune. I expect it has a pretty aggressive advance setting, but I was still surprised by the amount of spark knock.
I am running a 52mm throttle body, K&N Filter w/open lid, TB Bypass, 160 Thermostat.
Is there some underlying issue that I should take a look at that makes me susceptible to spark knock with the Hypertech "canned tuning" ? The car was babied before I bought it. (The TB was only opening up to 2/3 WOT due to cable misadjustment). The car has 82k, probably original wires and maybe even plugs. I can definitely hear static on AM stations, so I expect to replace wires and plugs this month. Any ideas, oh wise ones? (Aside from canning the Hypercrap and investing in LT1 Edit. That will have to wait until I and my ignorance are a little less dangerous to the car and my checkbook...)
Thanks in Advance,
:cheers: :steering: :cheers:
Safety Car
Joined: May 1999
Posts: 3,651
Likes: 5
From: Atlantis
Cruise-In I Veteran
Re: Spark knock using the Hypertech Power Tuning (Da Wiz)
1) Make sure your base timing is set to +6 degrees.
I'm sure the program makes spark adjustments with that as a reference.
2) Run gas with as much octane as you can get.
I'm sure the program makes spark adjustments with that as a reference.
2) Run gas with as much octane as you can get.
Thread Starter
Pro
Joined: Apr 2003
Posts: 568
Likes: 12
From: Jacksonville Florida
Re: Spark knock using the Hypertech Power Tuning (VetNutJim)
Jim,
I am running 93 Octane.
In my 94, the manual states engine base timing is set at time of engine manufacture, and is controlled through the ECM. No adjustment is necessary except through the program.
Thanks for the suggestions, they drove me back into the manual. I am going to eliminate the simple things first, wires and plugs. I will set aside a day for that. I understand #8 is a monster.
Any other ideas? :confused:
I am running 93 Octane.
In my 94, the manual states engine base timing is set at time of engine manufacture, and is controlled through the ECM. No adjustment is necessary except through the program.
Thanks for the suggestions, they drove me back into the manual. I am going to eliminate the simple things first, wires and plugs. I will set aside a day for that. I understand #8 is a monster.
Any other ideas? :confused:
Safety Car
Joined: May 1999
Posts: 3,651
Likes: 5
From: Atlantis
Cruise-In I Veteran
Re: Spark knock using the Hypertech Power Tuning (Da Wiz)
It's set at the factory but that doesn't mean some kind soul hasn't RESET it along the dusty road of life.
It's easy to check with a 19 buck timing light.
You'll need to disconnect the EST wire at the distributor.....uh-oh....
Just realized sumpin.....
you've got a 94 Hmmmm opti spark......Geez I ain't got one ah'dem...
Sorry, I'm out on this one. Yo's don't work like mine.....
I'm sure someone will come in on this one and send you some good info.
Please disregard all the stuff I said.... Sorry.
It's easy to check with a 19 buck timing light.
You'll need to disconnect the EST wire at the distributor.....uh-oh....
Just realized sumpin.....
you've got a 94 Hmmmm opti spark......Geez I ain't got one ah'dem...
Sorry, I'm out on this one. Yo's don't work like mine.....
I'm sure someone will come in on this one and send you some good info.
Please disregard all the stuff I said.... Sorry.
Thread Starter
Pro
Joined: Apr 2003
Posts: 568
Likes: 12
From: Jacksonville Florida
Re: Spark knock using the Hypertech Power Tuning (VetNutJim)
Zero stress event. Thanks for the input. I am brand new at this, so I stay completely turned around. Best thing I ever did was buy that manual and join this forum. :flag
Any other ideas out there?
:cheers:
Any other ideas out there?
:cheers:
Burning Brakes
Joined: Apr 2001
Posts: 1,209
Likes: 0
From: Toronto Ontario
St. Jude Donor '13
Re: Spark knock using the Hypertech Power Tuning (Da Wiz)
I expereinced pinging right after I used the hypertech programming. Must be related to timing and I was even using 94 octane. I only use the Hyperjunk to change rear end ratio's now.
Vic
Vic
