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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Pontiac Technician
Category: Pontiac
Satisfied Customers: 2373
Experience:  GM Grand Master Technician 2007. 14 years experience.
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I have a 2007 G6, we had codes that showed the injectors

Customer Question

I have a 2007 G6, we had codes that showed the injectors needed serviced. We serviced the injectors with the motorvac injector cleaner, then we got a exhaust cam position sensor error. We replaced the exhaust cam position sensor. The car will not start. We have communication to to computer via a Modis. It has multiple codes. We have also tried the relearn procedure for the key. We have checked power to computer and fuel system, have also checked fuel pressure. The car cranks, but no start
JA: Do you have a scan tool to read the codes?
Customer: A Modis from snap-on, as I said there are multiple codes
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: We are an automotive repair shop that has not ran into this issue. As I said, we flushed the injectors, replaced the exhaust cam position sensor, checked for power to computers an fuel system. We also checked fuel pressure
JA: Anything else you think the mechanic should know?
Customer: Our mechanic that is working on this car has 45 plus years of experience and is stumped by this. If you need I can get all the codes. The inital codes were p1174, p0300, p0014
Submitted: 4 months ago.
Category: Pontiac
Expert:  john aka eaut replied 4 months ago.

did it run on arrival?

Customer: replied 4 months ago.
but not well
Expert:  john aka eaut replied 4 months ago.

has a compression test been performed?

Customer: replied 4 months ago.
the mechanic says there is compression in all cylinders
Expert:  john aka eaut replied 4 months ago.

even?

Expert:  john aka eaut replied 4 months ago.

injector pulse? spark?

Customer: replied 4 months ago.
Expert:  john aka eaut replied 4 months ago.

what motor? you sure it didnt jump time? did he physically put a compression gauge on it?

Customer: replied 4 months ago.
It is the 2.4, there is spark from the spark plugs and he has fuel pressure. It is in time and yes he did put a compression gauge on it.
Expert:  john aka eaut replied 4 months ago.

is the fuel contaminated? are the injectors spraying? will it run off spray in the TB?

Customer: replied 4 months ago.
No the fuel is not contaminated, spraying into the TB did not make it run, How can we check if the have pulse?
Expert:  john aka eaut replied 4 months ago.

noid lights...

Expert:  john aka eaut replied 4 months ago.

you sure it has good spark?

Customer: replied 4 months ago.
The spark plugs all have spark, we are checking the injectors
Expert:  john aka eaut replied 4 months ago.

if your are spraying fuel and they have spark it should fire

Customer: replied 4 months ago.
We know that it should fire, we have located our noid lights and they do not fit this car, we will have to locate one that does.
Customer: replied 4 months ago.
Can't get a noid light until tomorrow. Thanks for trying to help
Expert:  john aka eaut replied 4 months ago.

make jumpers...

Customer: replied 4 months ago.
We got the car to run by replacing the exhaust cam position sensor again, you only asked us to recheck things we had already checked. Thanks anyway we got this

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