Thread: Got codes

Neither of these codes are related to ignition coils. P1573 is lost comm to the EBTCM and P0133 is slow response from an O2 sensor. You may have two issues or a bad PCM. As for the eBay coils, they are not stock and stock are the best. Even stock coils from a junkyard will be better than any other brand.

Thats interesting. I changed the O2 sensor already.
The EBTCM I don't know how to fix it or where to get a new one.
But if I have no failure codes now after changing the ignition coils then all will be good.
Bad PCM? Its a PCM from ZZP I have. After 4 years gone bad? ok nothing surprises me anymore.
​Had the same with the ignition coils from ZZP also.
The second problem is I have awful gas consumption......it goes higher and higher everytime. Whats that?

That is a repair service for the EBTCM. These modules are known to fail. New ones are far too expensive and it is not possible to be sure of anything from a junkyard. Probably the most reputable repair service is the one below. I just had a repair completed a few months ago.

REPAIR KIT for 1997 - 2003 Pontiac Grand Prix ABS Control Module We Install | eBay

Originally Posted by kappa67

​@jeepers
Is this the EBTCM module?
Pontiac Grand Prix GTP ABS EBCM JL4 module with active braking REPAIR SERVICE | eBay

@Kappa67, that is a great deal.

Now I have only one question:
The car has such high fuel consumption.
Why? Before it was down on 10l/100km
And now at 16,5l/100km.
​Whats that?

And I drove the car today an had no codes...this all with the new ignition coils
Think the old ones where a problem.

You might want to check your plugs to see if you can determine if one is not firing well. I know you will not want to hear it but, having gone through this several times myself, grab a set of original coils. Even ones from a junkyard. I have had two sets of MSD coils in my car and both caused acceleration issues intermittently. I swapped one coil at a time with stock coils and ended up with all stock coils both times. Both times, I tried every combination and permutation of stock+MSD coils trying to isolate the bad coilpack(s). The first time, if any of the MSD coilpacks were installed, I had problems. The second time, after many coil swaps, they just started working without issue. It is inexplicable to me. There was a problem, then suddenly there was not. I slowly backed away from the car, gave it an appreciative nod, and closed the hood. They have been there for the last couple of years.

The upshot of all this, while struggling through the above, all of my experience and research demonstrates that the stock coils just work. There is no performance gain from any aftermarket coils so the only reason to do it is aesthetics which is why I persisted. In the back of my mind, I know that there is a good chance that I will have to abandon the pretty red ones at any time.

That is a tricky code. If we ignore that and just focus on fuel efficiency, your MAF sensor may stand a cleaning.