Performance chip for advancement of timing?
 

This is the posting for an auction on ebay as people are out to make a buck off everything so a fellow cz28 memeber emailed when i bid on one of these timing advancer module.

here is the posting

All vehicles have an Electronic Control Unit (ECU) a computer chip that electronically manages and monitors your car's performance. That means that your car could go faster and get more power if you replace the ECU. This could cost Hundreds. This part will modify your stock ECU with a Timing Advance Resistor. Once the resistor is installed, the ECU will read that the air coming in through the intake is cold air. This will give you the power that you want for your car witout spending all that money. This will fit most fuel injected models (non-turbo) of cars and trucks from 1990 and up. No tools are required and this mod will not damage your car in anyway. Your car will accelerate faster and have a higher top end speed. Instructions Included.

how does this work and how can i do it at home?

Yea that thing is a joke. I hate people at ebay sometimes! This is the one that comes in like all these different colors right? Or i might be thinking about some other joke product at ebay..

The American government just relaesed figures yesterday on fraud related activity on the internet that reached $54 billion I believe. They stated that most of the fraud was related to auctions.

Does anyone know how that mod would work? so i can do it with out getting ripped off

Don't do it... It's a resistor that goes in series with the inlet air temp sensor. On most vehicles, this does cause the timing to advance a little, but the knock retard on the LS1 will limit what you get. On speed-density fuelling systems, it also richens the mixture a little, since the predicted air mass is higher, but the closed loop control will soon compensate, and then there'll be no difference. This doesn't happen on engines with a mass airflow sensor like the LS1. There's been a debate running for ages about their use on Dodges, where you can feel a difference immediately after the mod is done, but no real evidence of a long term change.

hmm thats very interesting it doesnt sound like its worth it to do it now

Ahh yes..

the intake air temperature resistor "mod."

You can buy a set of resistors that will work for this at radio shack..

I think the resistence people were using was 4.7K ohms..off the top of my head..that was years ago.

a pack of them costs something like $1..

Basically, what this does is tell your ECU that the temperature of the intake air is ~59 degrees..theoretically, this keeps it from retarding the timing due to a hot air intake temp..

but you could be getting your timing retarded by the reading from the knock sensor..whether you are getting actual knock or false knock..so telling the ECU that the IAT is 59 degrees really doesn't help your cause..you'll still get knock if the air is hot and your octane level isn't sufficient, and your timing will be backed off.

I desensitized my knock sensor with a resistor to keep it from detecting false knock (e.g. engine and exhaust noise). I was getting 28 or 29 degrees of timing advance in the summer (no knock retard).

BTW, even if it weren't a rip-off, I wouldn't trust that seller..his/her english is horrible! It sounds like that person is 8 years old.

thanks that post helped me a lot everyones trying to make a buck these days lol

If you want to change your timing or a/f ratio get either the predator or ls1 edit. The predator is easier to use but doesn't have as many options as edit.