awesome put it in along with the ls1 fans so far so good :thumb:
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awesome put it in along with the ls1 fans so far so good :thumb:
good mod! :thumb: does it run any stronger?
Chris
yeah gettin better gas mileage so far too
yeah gettin better gas mileage so far too
Yeah it ran alot better for me, it got rid of all the pinging i was getting. It will show you how much the 99 PCMs suck no matter how you thought your truck was running then. Wait till it builds up! :jump:
Chris
builds up? ......... u mean gas mileage
also ive heard u say before how the pcm hasto "learn" i was wonderin what the deal with thaat was??
I'm guessing this would be a good mod for me to consider? My 99 pcm pings like no other.
Yeah switching over is worth it. Basically on the building up, the tune gets even better as you drive and put mileage on it. It adapts to your driving style and will map its tables out accordingly. It's just one of those unexplainable things about how it works. Mine usually get better up until 500 miles or so.
Chris
no kiddin
How do you know you are getting detonation? Do you hear it?Quote:
Originally posted by JayBo@Sep 29 2005, 06:27 AM
I'm guessing this would be a good mod for me to consider? My 99 pcm pings like no other.
If the knock sensor is working, it should retard timing so quickly that you may not hear enough of it to recognize it as detonation.
I also thought the problem with the 99 PCM to be false knock detection, wherein the PCM identifies non-detonation sound as detonation and retards the timing when there was no real detonation.
Does the PCM flash a message on the dash when it retards the timing a certain amount?
where are yall getting the 02 pcm's and what do they run price wise?
is there a major difference between my 00 pcm and an 02 pcm?
allen told me to get one, i havnt looked into it yet
I can tell its pinging because I can hear it. It all started with my origional engine when I had my hypertech. From then on, its pinged like hell. Allen's tune helped some, but it still pisses me off. I dunno what to make it stopQuote:
Originally posted by FS560+Sep 30 2005, 02:21 PM--><div class='quotetop'>QUOTE(FS560 @ Sep 30 2005, 02:21 PM)</div>Quote:
<!--QuoteBegin-JayBo
How do you know you are getting detonation? Do you hear it?Quote:
@Sep 29 2005, 06:27 AM
I'm guessing this would be a good mod for me to consider? My 99 pcm pings like no other.
If the knock sensor is working, it should retard timing so quickly that you may not hear enough of it to recognize it as detonation.
I also thought the problem with the 99 PCM to be false knock detection, wherein the PCM identifies non-detonation sound as detonation and retards the timing when there was no real detonation.
Does the PCM flash a message on the dash when it retards the timing a certain amount? [/b]
02 pcm would be a great bet to get it to go away, it helped tons on mine.
Chris
I was just talking to Jonathan about that. Well, mentioning it to him anyhow. I'm about to have a to retune anyhow, I'm getting 285's and I want my shifts a good bit firmer. Maybe I'll look for an 02 salvags PCM