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Need help after pcm install

Perry125

Perry125

New member
Hello, so i installed a pcm which someone loaded the stock tune to, then loaded the dhp 3.0 tune to, then went through it a little bit.

Now after install, i try to do the security relearn-

You crack the driver side window
try to start the car, let it sit in the on position until the security light goes off
turn the key to off
wait 10 seconds
try to start again
let the key fall back to the on position again
wait for the security or the SES light to go off (about 10 minutes)
turn the key off
try to start again, if it cranks, keep cranking till it starts or else you have to start all over again


I have no security light on, and when i try to start it, it sometimes fires for 2 seconds then shuts off.

thanks.
 


dhp 3.0? thats new to me, but it does sound like your security is causing the issue, should let it fire for about 2-3 seconds then it kills the fuel
 
1. Disconnect battery
2. Install new computer
3. Reconnect battery
4. Put emergency brake on to disable daytime running lights (this step is required!)
5. Make sure all doors trunk and hood are closed leave driver window down and reach in threw window
6. Try to start. If it doesn't start, leave the key in the on position for 10 min on 97-03 cars and 15 min for 04 and newer cars. The security light should turn off after this amount of time.
7. Turn off ignition for 3 seconds
8. Try and start the car. It probably won't start. Repeat step 5 two more times.
9. If this doesn't work disconnect battery for 5 seconds and then try and start the car.

If that doesnt work, try this one:

1. Disconnect battery for 10 sec.
2. Reconnect battery
3. Turn key to ON position
4. Do not try to start vehicle, just quickly click to RUN position to engage security light
5. Let vehicle sit with key ON for 35 min.
6. Attempt to crank vehicle. Once vehicle is running, the security light may still be on
7. If security light is still on, turn key to OFF position for 5 sec.
8. Turn key to ON position and security light should turn off
9. Start vehicle and enjoy new PCM
 
It was the latest dhp file about 6 months ago..

Thanks ill try that second one, i already tried the 1st one.
 
After it fails to start wait for the security light to go off. Then turn the key off for 3 sec and just go back to run do not crank. Wait for the light to go off and then try to start.
 
I cant get the security light to come on with that procedure, what is preventing it from starting?

thanks
 


If it runs for 2 sec and shuts off it defently sounds like the security system. Does the security light come on in the bulb check?
 


If still cranks fine, just does not fire try unhooking the battery for half an hour and try to start it again.
 


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