HP tuners help please!!!
HP tuners help please!!! So I got my 408 in and the P/P heads. I ordered the Hptuners software and in need of some help to tune the car. I am new to the hptuners software and any help yall could give me would be awesome. The cam in a 238/242 605/610 112lsa. The heads are the stock heads that flow 305.7 @.600. Right now I have a SES light for the code PO332, which I believe is a knock sensor issue. Can someone please help me with the tune?
Brandon
Brandon
first make sure you've deleted any misc codes, then start with the small stuff, fan temp turn on/off points, tq management I believe theres only engine TM on 98's so determine what you want to do with that...you can then adjust the displacement of the engine you now have...then work on your idle properties target idle speed, base airflow, etc, once you have that dialed in you can move on to spark & fueling.
The car had already been tuned for a tr224 cam and all the boltons. The car runs as it is right now, it just keep throwing the po332 code. It idles fine and everything. I think it might be running just a little rich though. I dont have the software in front of me so idont know. I will be able to check all that friday night. Has nobody tune a similar tune on their car?
The know it all's know it all
Joined: Oct 2006
Posts: 500
Likes: 0
Originally Posted by blu98ta
So I got my 408 in and the P/P heads. I ordered the Hptuners software and in need of some help to tune the car. I am new to the hptuners software and any help yall could give me would be awesome. The cam in a 238/242 605/610 112lsa. The heads are the stock heads that flow 305.7 @.600. Right now I have a SES light for the code PO332, which I believe is a knock sensor issue. Can someone please help me with the tune?
Brandon
Brandon
start with spark make sure the fuel injector size is right and hopefully this info will get you idling. Don't worry to much about idling at 14.7 its a wasted effort with that camshaft. I figure from other vehicles with similar displacement your gonna end up between 16.7 and 17.2 at idle and low engine speed like up to 1500 or so tapering back to say 15.5 :1 till 2000rpm and over 2000rpm figure 15.0-14.7. thats a bit more overlap then i usually recomend to people with a ton more advance. It may look even leaner. either way use your ears and the plugs to figure out the optimal AFR to idle and part throttle unless you have acess to a 5 gas.
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The know it all's know it all
Joined: Oct 2006
Posts: 500
Likes: 0
Originally Posted by blu98ta
The car had already been tuned for a tr224 cam and all the boltons. The car runs as it is right now, it just keep throwing the po332 code. It idles fine and everything. I think it might be running just a little rich though. I dont have the software in front of me so idont know. I will be able to check all that friday night. Has nobody tune a similar tune on their car?
Also p0332 is Knock sensor rear.
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Originally Posted by Sean Collins
first thing first before you play with anything idle related. turn off all of the idle air correction factors and adders set them to 0.0000. They will play havoc with you becuase the logic is kinda flawed in that pcm. the 97/98 pcms have differing idle logic and they can be a pita. Set the injectors size ( if you havn't modified your maf or are using the SLP recalibrated maf ) make sure the MAf table is correct. Put the ECM in open loop meaning crank up the closed loop enable table vs IAT to 255c
start with spark make sure the fuel injector size is right and hopefully this info will get you idling. Don't worry to much about idling at 14.7 its a wasted effort with that camshaft. I figure from other vehicles with similar displacement your gonna end up between 16.7 and 17.2 at idle and low engine speed like up to 1500 or so tapering back to say 15.5 :1 till 2000rpm and over 2000rpm figure 15.0-14.7. thats a bit more overlap then i usually recomend to people with a ton more advance. It may look even leaner. either way use your ears and the plugs to figure out the optimal AFR to idle and part throttle unless you have acess to a 5 gas.
start with spark make sure the fuel injector size is right and hopefully this info will get you idling. Don't worry to much about idling at 14.7 its a wasted effort with that camshaft. I figure from other vehicles with similar displacement your gonna end up between 16.7 and 17.2 at idle and low engine speed like up to 1500 or so tapering back to say 15.5 :1 till 2000rpm and over 2000rpm figure 15.0-14.7. thats a bit more overlap then i usually recomend to people with a ton more advance. It may look even leaner. either way use your ears and the plugs to figure out the optimal AFR to idle and part throttle unless you have acess to a 5 gas.