1998 Camaro z28 won't start after Hp Tuner installed!!!!
02-28-2016, 09:44 PM
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1998 Camaro z28 won't start after Hp Tuner installed!!!! I have searched all over the net for different answers not sure exactly where I went wrong.I went into the ecu and had no issues at first.I later tried to write a Entire,Then my car wouldn't start after that.I'm not sure what I screwed up but I'm hoping someone that knows about this could help me.The car is a 1998 ls1 car was swapped when I got it.The motor is from a 99+ the car has never thrown a Check engine light since I've had it.I am wondering since i put tunes on there was my car already tuned.I'll attach what I have...the car has TSP 17/8 headers and Rumbler dual exhaust.SLP LID LS6 intake 241 heads.Fuel pump has been upgraded not sure which one.Please don't kill me here I'm learning and trying.I read a good bit made a mistake hitting write entire.After that the VCM didn't want to read.Then eventually I got the VCM to read calibrations again. I hit reset fuel trims at one point not sure if that did it? Car turns over but will not start.Was just running fine earlier in the day.
Last edited by Comptonrob; 02-28-2016 at 09:51 PM.
02-28-2016, 10:06 PM
#2
What version of HPT are you using?
It sounds like a possible VATS issue. Was VATS disabled prior?
Doing a write entire won't brick the PCM. Normally the only reason you'd do a write entire is if you change the OS and/or change the VATS settings.
Try unhooking the battery for a while. Make sure it's charged up and see if you can read the PCM.
I'm sure you're freaking out man. You'll get it figured out. You aren't the first one who has had the car not start after a HPT flash.
It sounds like a possible VATS issue. Was VATS disabled prior?
Doing a write entire won't brick the PCM. Normally the only reason you'd do a write entire is if you change the OS and/or change the VATS settings.
Try unhooking the battery for a while. Make sure it's charged up and see if you can read the PCM.
I'm sure you're freaking out man. You'll get it figured out. You aren't the first one who has had the car not start after a HPT flash.
02-29-2016, 03:06 AM
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What version of HPT are you using?
It sounds like a possible VATS issue. Was VATS disabled prior?
Doing a write entire won't brick the PCM. Normally the only reason you'd do a write entire is if you change the OS and/or change the VATS settings.
Try unhooking the battery for a while. Make sure it's charged up and see if you can read the PCM.
I'm sure you're freaking out man. You'll get it figured out. You aren't the first one who has had the car not start after a HPT flash.
It sounds like a possible VATS issue. Was VATS disabled prior?
Doing a write entire won't brick the PCM. Normally the only reason you'd do a write entire is if you change the OS and/or change the VATS settings.
Try unhooking the battery for a while. Make sure it's charged up and see if you can read the PCM.
I'm sure you're freaking out man. You'll get it figured out. You aren't the first one who has had the car not start after a HPT flash.
Full flash? Yes the Hp tuner gives you ability to flash the calibrations only or flash entire ecu. When I was only doing Calibrations rewrite car had no issue. Gonna have to go to the drawing board and see today.I couldn't hear the fuel pump after key was placed in on position.I'm guessing it has to do with the Vat system as well. Maybe I should have left it off.I got the car slightly modified and I have yet to figure out all of the things the previous owner did.The car never throws Check engine, All gauges work,Everything comes on but I don't hear fuel.
02-29-2016, 06:04 AM
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02-29-2016, 08:51 AM
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If the car has auto headlights be sure to turn them off. It may not of been anything you done at all. Any power surge during a flash can cause the flash to get mixed up. you don't hear the fuel pump because of the scrambled tune. That's why I would do a full flash. Had a guy hit his line lock button when I was flashing his car and it done the same thing. Thought we were screwed. Car wouldn't start. Did a full flash and told him not to touch anything and it worked. Those 98 pcm are getting hard to find so hope it's ok. That said I do have a spare if you needed one. it would need your tune flashed in it because it has a corvette tune in it now
02-29-2016, 10:32 AM
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If the car has auto headlights be sure to turn them off. It may not of been anything you done at all. Any power surge during a flash can cause the flash to get mixed up. you don't hear the fuel pump because of the scrambled tune. That's why I would do a full flash. Had a guy hit his line lock button when I was flashing his car and it done the same thing. Thought we were screwed. Car wouldn't start. Did a full flash and told him not to touch anything and it worked. Those 98 pcm are getting hard to find so hope it's ok. That said I do have a spare if you needed one. it would need your tune flashed in it because it has a corvette tune in it now
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03-01-2016, 01:26 AM
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I have the 2.24 and the car voltage would hang around voltage would fluctuate 13-14v just recently started showing low around 12.7 never gave me a issue.Went to get it charged,at a local auto part store.Came back they said the battery had a bad connector.So I got a Red top Optima figured nice investment.
03-03-2016, 06:05 AM
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If the car has auto headlights be sure to turn them off. It may not of been anything you done at all. Any power surge during a flash can cause the flash to get mixed up. you don't hear the fuel pump because of the scrambled tune. That's why I would do a full flash. Had a guy hit his line lock button when I was flashing his car and it done the same thing. Thought we were screwed. Car wouldn't start. Did a full flash and told him not to touch anything and it worked. Those 98 pcm are getting hard to find so hope it's ok. That said I do have a spare if you needed one. it would need your tune flashed in it because it has a corvette tune in it now
03-07-2016, 07:16 AM
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Yes I have and I kept gettting checksum fail error so I sent info to HP TUNER. Hopefully they get back with me.....They said it had to be sent to engineer to check out my HPT file.
03-16-2016, 07:41 PM
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this is old tune log first file ls1 idle
Second file is with new ecu from 1998 ls1 with changes I made not sure If I was going in right direction o2s were disabled ,egr,But the injectors b1 and 2 wouldnt show and MAP was reading 100
Someone help please.
Using 3.0 software now......
Second file is with new ecu from 1998 ls1 with changes I made not sure If I was going in right direction o2s were disabled ,egr,But the injectors b1 and 2 wouldnt show and MAP was reading 100
Someone help please.
Using 3.0 software now......
03-22-2016, 03:41 PM
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Can someone help! All I could do is Screenshot graph PID wouldn't store info. I have a chart of the car running with old ecu and tune as well. That is second file attached.I'm thinking my injector values are off. The car has a 02 motor and it is a 1998.