thanks. Might be on to something here. I did have fuse box out at one time, Battery is brand new. I assume every fuse should read the same I tested about 4 of them and all were low. What could cause such a thing assuming battery load tests ok ?

 

I was mistaken in last post. Just checked fuses and all are 12.32 at least. Battery is 12.36 so I will put on the trickle charger for a bit. Sorry for the confusion

 

I amstill fighting the battle of the HHR 2.2. Very reputable shop diagnosed my #4 miss and pronounced ecm bad. I returned the ecm and eventually got a replacement. Now I have no spark but engine turns fine. I do have fuel at the fuel rail. Replacement ecm could be bad as well but it has a sticker on it indicating it has been programmed to my VIN. I am trying to rule out other things before sending it back to Flagship One.

With the key on, engine off, the leads to the coil packs read 12v on the left pin, .25 -.45v on each of the middle pins, an 0.00v on the far right pin. I removed one plug and definitely had no spark with engine turning over. All leads rread the same.
Is this voltage correct? Any other thoughts on crank but no start?


thanks for your help.

 

Measuring voltage at a fuse tells you nothing. The only thing you need to know is if there is continuity i.e.: the same voltage on either side.

 

My battery was pronounced dead at 12.4 volts , it had 2 dead cells, get yours load tested.

 

I amstill fighting the battle of the HHR 2.2. Very reputable shop diagnosed my #4 miss and pronounced ecm bad. I returned the ecm and eventually got a replacement. Now I have no spark but engine turns fine. I do have fuel at the fuel rail. Replacement ecm could be bad as well but it has a sticker on it indicating it has been programmed to my VIN. I am trying to rule out other things before sending it back to Flagship One.

With the key on, engine off, the leads to the coil packs read 12v on the left pin, .25 -.45v on each of the middle pins, an 0.00v on the far right pin. I removed one plug and definitely had no spark with engine turning over. All leads rread the same.
Is this voltage correct? Any other thoughts on crank but no start?


thanks for your help.

 

Did you do the relearn?

Passkey III – transponder ignition key
The Passkey III anti-theft system uses a transponder inside the head of the ignition key. The
exciter inside the ignition lock cylinder energizes this transponder when the ignition switch is
turned on. The transponder transmits a unique signature to the theft deterrent control module.
If the key signature transmitted is acceptable to the theft deterrent control module, the theft
deterrent control module will transmit fuel enable password to the PCM. If the fuel enable
password is correct, the PCM will start the vehicle.
To perform a relearn on a Passkey III system, make sure there is a fully charged battery in the
vehicle. The battery will be used for 30 minutes without the alternator available for charging.
Connect a battery charger to the battery to ensure power is available while programming.
When performing this relearn, all previously learned keys will be erased. Additional keys may
be relearned immediately after the first key has been learned by inserting the additional key
and turning the ignition switch to on within 10 seconds of removing the previously learned key.
1. Insert a master key (black head) into the ignition switch.
2. Turn key to the “ON” position without starting the engine. Security light should turn on and
stay on.
3. Wait for 10 minutes or until the security light turns off.
4. Turn key to the “OFF” position for 5 seconds.
5. Turn key to the “ON” position without starting the engine. Security light should turn on and
stay on.
6. Wait for 10 minutes or until the security light turns off.
7. Turn key to the “OFF” position for 5 seconds.
8. Turn key to the “ON” position without starting the engine. Security light should turn on and
stay on.
9. Wait for 10 minutes or until the security light turns off.
10. Turn key to the “OFF” position. The key transponder information will be learned on the next
start cycle.
11. Start the vehicle. If the vehicle starts and runs normally, the relearn is complete. If additional
keys need to be relearned:
12. Turn the key to the “OFF” position.
13. Insert the next key to be learned. Turn the key to the “ON” position within 10 seconds of
removing the previously used key.
14. Wait for security light to turn off. It should happen fairly quickly. You may not notice the
lamp, as the transponder value will be learned immediately
15. Repeat steps 12 through 14 for any additional keys.


If you have a manual transmission, it may be a little different.

 

The directions that come with the ECM say to do the key relearn thing. That is for other Chevys. HHR PK3 is handled by the BCM. After it has your VIN in it it will only need the crankshaft relearn.

 

I had to do it for the ECM from ZZP. A bit different with manual transmission.

From their site
11. How do I perform a security relearn?
For the seed key relearn, this is the procedure:
You can open and close the door- It doesn't matter. You will need to get in and out since you need to push in the clutch.
1. Depress the clutch and try to start the car. If it does not turn over, let off, but leave the key in the run position. The security light should be lit up on the dash.

2. Wait 10 minutes(you can open the door and get out). The security light on the dash will turn off after 10 minutes.

3. Turn the key off for 5 seconds, then depress the clutch and try to start the car. If it does not turn over, let off, but leave the key in the run position. The security light should be lit up on the dash.

4. Wait 10 minutes(you can open the door and get out). The security light on the dash will turn off after 10 minutes.

5. Turn the key off for 5 seconds, then depress the clutch and try to start the car. If it does not turn over, let off, but leave the key in the run position. The security light should be lit up on the dash.

6. Wait 10 minutes(you can open the door and get out). The security light on the dash will turn off after 10 minutes.

7. Turn the key off for 5 seconds, then depress the clutch and try to start the car. The car should start on this attempt.

It didn't work at first, because I was missing a step. I was forgetting to turn the key to off before each attempt.

 

Thanks for the info. I have done the relearn several times, usually to get the car out of the security lockout. Do you think that process might also give me an ignition spark? If so, I will run it again. Security system seems to be unlocked now. Starter spins, windows, doorlocks, wipers, lights, radio all fine. fuel pump comes on and there is fuel at the fuel rail.

It seems like all I need is a spark plug to fire.

I appreciate your help.

Al