RPM WS6

iTrader: (3)

I know I should have asked this question before I did it, but I was just wondering if there was any reason why it would be better to use your stock PCM than exchanging for a core from a tuner?
MTI is setting up a PCM for me, and I’ll be returning my stock one for credit. They are tuning one that was a core they had on hand and offered either method (ship them mine, or send me one) that I wanted. I thought it would be nice to have a PCM in the car while I waited for the new one so I went that route.

Any reason why I should have sent them the stocker to be tuned? I don’t even know why I’m thinking about thus now, but I guess it’s because there is so much stuff coming up for the car right now to be done that I’m getting really nervous about anything going wrong!

What do you guys think?

Colonel

Don't worry, it doesn't matter. I've had the same thing done many times.

RPM WS6

iTrader: (3)

Thanks for the reassurance Colonel! That makes me feel a lot better <img src="gr_stretch.gif" border="0">

I’ll feel great after everything is done and I can stop worrying...

Then I’ll be doing this <img src="graemlins/fluffy.gif" border="0" alt="[Fluffy]" />

HWYRIPR

iTrader: (9)

I had my PCM get fried by letting the battery die while installing HPP3.The dealer put a new PCM in,and I got it back,it ran like crap,felt weak!So a friend A-tapped it and it was sending a crankshaft not learned code,we looked in his service manual and it said whenever a PCM is replace this procedure must be done.I just thought I'd say something about that,but you must be using a PCM that has already learned that or Colonel wouldnt say it's ok! <img src="graemlins/gr_xmas.gif" border="0" alt="[santa]" />

FigsZ28

iTrader: (70)

[quote]Originally posted by HWYRIPR:
<strong>it was sending a crankshaft not learned code,we looked in his service manual and it said whenever a PCM is replace this procedure must be done.</strong><hr></blockquote>

Did the code ever go away?? I recentley had a new computer put in and have the same code. Its been like this for 3 days now. What did the service manual say the PCM had to do. I tried deleting the DTC (P01336) but to no avail. Any info would be appreciated.

Ragtop 99

iTrader: (7)

If you have never used a HPP3, I would consider sending your PCM. Ed Wight claims he has had problems with some cores from people who have used the HPP3 to make frequent changes.

ShooterSS

iTrader: (3)

To play it safe, I bought an extra from ValveGod and will be sending that one in for a program to MTI. Hopefully I have better luck with that one that the stock one in there now. Damn Torque Management. <img src="gr_images/icons/wink.gif" border="0">

HWYRIPR

iTrader: (9)

[quote]Originally posted by FigsZ28:
<strong>

Did the code ever go away?? I recentley had a new computer put in and have the same code. Its been like this for 3 days now. What did the service manual say the PCM had to do. I tried deleting the DTC (P01336) but to no avail. Any info would be appreciated.</strong><hr></blockquote>

Yes,But I had to take it back to the dealership that did the work so they could use the scan tool to do the procedure.That sound just like what mine did,have you lost some power?They tried to make me pay!I told them that I had to tell them what they forgot and pay them for it,NO WAY! <img src="gr_images/icons/mad.gif" border="0"> So,if they try some crap with you tell them they should have known!Hope this gets ya straight!Steve <img src="gr_grin.gif" border="0">

RPM WS6

iTrader: (3)

This is now something that concerns me. Does MTI take care of this before sending out the PCM? What needs to be done to correct this issue? Going to the dealer with an MTI tuned computer is not an option.

Anybody ever get a core from MTI that had this issue? Mine should be arriving any day now, so I won't know till then <img src="gr_sad.gif" border="0">

MyLS1Hauls

iTrader: (2)

This Crankshaft Position Sensor learn cannot be done correctly until the PCM is in the car that its going to be used in. The purpose is for the PCM to 'learn' where the sensor is. Different tolerances change where the sensor is in every engine. Everytime you remove the sensor, replace the crank, or replace the PCM you need to do one of these. One of my buddies has a new PCM and I have not used the Tech 2 on it yet and he has no SES light. According to GM, not 'learning' the PCM has no effect on performance. This is used to detect misfires more accurately.

Brad

RPM WS6

iTrader: (3)

Will the PCM eventually learn on it’s own? What else can I do? Going to a dealer is not an option, and I don't have access to a Tech II either. Why didn’t MTI tell me this before? They must have known...

Sounds like I got myself into a big mess <img src="gr_sad.gif" border="0">

[ December 12, 2001: Message edited by: RPM WS6 ]</p>

timelord

I bought a used PCM to send to ED,if we have to pass SNIFFER tests or worse,have them plug into our PCMs we are screwed.Apparently they will start this stupidity late 02 early 03,if they do impose this,switch PCM & bolt CAT back on,get my tags them remove until next inspection.Is this a concern to anyone else???

RPM WS6

iTrader: (3)

This is the info I pulled off the Illinois state EPA site about Il testing procedures. Looks like as long as you don't have any codes you should be fine. Read below.

[quote]
Step One
 A certified inspector enters vehicle data into the computer.
 Driver and passengers leave the vehicle and go to the waiting booth to observe the test.
 The gas cap is tested to ensure fuel vapor is not escaping.

Step Two
 A certified inspector moves the car into position to conduct the exhaust emissions test. The lane computer determines the test type and standards for your vehicle. Emissions are gathered from the tailpipe and analyzed.
 Depending on the test required, the vehicle is tested on a treadmill called a dynamometer for up to four minutes, or the vehicle is given an idle test.
 The on-board diagnostic system of newer vehicles will be checked for the proper operation of the emissions control system.

Step Three
 The lane computer compares results to standards and prints the vehicle inspection report.
 If the vehicle passes, the vehicle inspection report includes a compliance certificate.
 If the vehicle fails, the motorist receives a vehicle inspection report and a repair diagnostic report with useful information for making the required repairs


Information on the Illinois Vehicle Emissions Test Program:

Emissions Test Procedure
The vehicle is driven on a treadmill to simulate normal driving conditions. The procedure will take between 30 seconds and 4 minutes. HC and CO are measured.

Gas Cap Test
Pass/fail test. The inspector checks the gas cap for leaks and proper fit.

On-board Diagnostics Test
Advisory only. 1996 and newer model year vehicle’s on-board diagnostics systems will be accessed to retrieve stored emissions-related problem codes.

Vehicle Inspection Report
The motorist receives an enhanced computer printout, which will include detailed information that will help a repair technician diagnose problems for vehicles that fail.<hr></blockquote>

Ragtop 99

iTrader: (7)

[quote]Originally posted by Colonel:
<strong>Don't do a lot of worrying for nothing.

I've had a few ECMs from Ed Write, I've had SEVERAL from MTI and I've NEVER done a crankshaft relearn procedure. I've never gotton a code saying it needed doing either.
</strong><hr></blockquote>

Ditto. 2 PCMs from EW and 2 from MTI.

I have my third PCM from MTI coming tommorrow. <img src="gr_images/icons/cool.gif" border="0">

RPM WS6

iTrader: (3)

Thanks Colonel and Ragtop <img src="gr_stretch.gif" border="0">

I’m once again feeling better about this situation. <img src="gr_images/icons/wink.gif" border="0">

Now if it would just show up <img src="gr_sad.gif" border="0">

I think I’ll give MTI a call today...

Colonel

Don't do a lot of worrying for nothing.

I've had a few ECMs from Ed Write, I've had SEVERAL from MTI and I've NEVER done a crankshaft relearn procedure. I've never gotton a code saying it needed doing either.

ALL of my MTI computers have been HPP3'd to death by me and none have had any ill effects due to it so far as I can tell (true DO NOT EVER let your battery go dead while programming is in progress with an HPP3.)

Install the computer. If it doesn't work right (it will) THEN worry! <img src="gr_stretch.gif" border="0">

RPM WS6

iTrader: (3)

I’ve heard about the OBDII “plug in” test. And that any aftermarket variations will cause you to fail emissions.

Quite frankly, they can kiss my ***. I’m sure there will be some way around this. I don’t honestly see how they can expect us to adhere to a law that will be inacted after our cars were built. That’s like telling guys with ’70 Chevelles to put cats on to pass the test. That’s BS <img src="graemlins/gr_bs.gif" border="0" alt="[bullshit]" /> and I personally would fight it with my every last penny. I won’t forced to sell my car and buy an older one just so that I can mod the ‘puter and still pass emissions. <img src="gr_images/icons/mad.gif" border="0">

EDIT: Thanks Colonel! I hadn't seen your post before I posted. If there is an issue though, can a dealer do ANYTHING (including Tech II relearns) with a custom tuned PCM? I wouldn't think their system would recognize my new program?

[ December 12, 2001: Message edited by: RPM WS6 ]</p>