2002 malibu doesn't start

[1952Don]

Have a 2002 malibu base 3.1 v6 that will not start. Battery charged, motor cranks, pump pumps 52psi at the rail, pink wire to injectors has 12v, fuses good, injectors click when jumped manually but not when starting. CPM is not grounding the six individual injectors to open nozzles. Bad CPM or is there another sensor I should look at?

[maxwedge]

Do you have spark, will it start with starting fluid?

[1952Don]

Car will start and run on gas fed thru throttle body manually.

[maxwedge]

Then you have no injector pulse. Remember one shorted injector can pull down the rest. The pcm is not grounding the injectors, check connections at ign module, pcm, both crank sensors, scan it also and see if you have cranking rpms.

[Tech II]

Max, I don't think one bad injector will pull down the rest because it is sequential....If non are pulsing, could have a bad ICM, or possibly the Security system is acting up, but usually there is an initial pulse to the injectors and then nothing.....

Has this been scanned for "P" and "B" codes?

[1952Don]

no codes showing, each of 6 injectors click when manually grnded. test light on connector shows no grnding of injectors(any) when cranking. not key recognition

[maxwedge]

Correct on sequential, probably blow a fuse though.

[1952Don]

Thanks everyone for the help to date , would anyone know if any of the crankshaft or cam position sensors would cause this effect?

[hotpipes]

1952Don
I had the same problem and this worked for me
hotpipes
THEFT

DETERRENT SYSTEM -2002 Chewolet Malibu LS Page I of I

30

I*in*t* L**rrr Frocedure

l.

Tum ON the ignition, with the engine OFF.

2.

Attempt to start the engine, then release the key to ON, vehicle will not start.

3.

Observe the SECURITY telltale, after approximately l0 minutes the telltale will tum OFF.

4.

Turn OFF the ignition, and wait 5 seconds.

5.

Repeat steps I through 4 two more times for a total of 3 cycles/3O minutes, the vehicle is now

ready to relearn the

PasslockrM Sensor Data Code and/or passwords on the r-rext ignition switch

transition from

OFF to CRANK.

Important:

The vehicle learns the PasslockrM Sensor Data Code and/or password on the next

ignition

switch transition from OFF to CRANK. You must turn the ignition OFF befbre
attempting to start the vehicle.

6.

Start the engine, the vehicle has now learned the PasslockrM Sensor Data Code and/or

password.

7.

With a scan tool, clear any DTCs if needed, history DTCs will self clear after 100 ignition

cycles.

O

2008 Mitchell Repair Information Co., LLC.

http : //www.ondemand5. com/mric/common/asp/printart. aspx 312212013

[1952Don]

You have hit the nail on the head, that was exactly the fix. Don't trust the theft light to blink when no key recognition.

[Tech II]

This procedure resets, or relearns, the "R" code of the PassLock module.....

You are not out of the woods....the problem is not fixed....I guarantee this will happen again.....because a PassLock problem existed, the injectors were not firing....

You said no codes were showing....that's because you did not scan for "B" codes......code readers can't read "B" codes, only "P" codes......if you did, you would have found a B2958 or B2960 set....it's still in there in history.....

So you have three options.....fix it.....install a toggle switch, and use the procedure which will leave the Theft light on......or install a resistor in the circuit.....you will find the toggle/resistor procedures listed in previous posts, under "PassLock Problems/Fixes"

Eventually, the reset procedure will not work....and it's a pain in the ass to keep repeating....

[hotpipes]

Tech11
Can you give us any idea as to how to fix this problem other than installing a toggle switch?
I have been looking at a Innova 3160C scanner and I am hoping it can tell me which part to replace I was told that it can read B codes. by the Innova Rep. It's a new model.
I would appreciate any of your thoughts on this Idea.
hotpipes

[1952Don]

Looks like the resistor installation is the way to go as a new switch etc is more than the car is worth and it does indeed happen again.

[aleekat]

Originally Posted by hotpipes

Tech11
Can you give us any idea as to how to fix this problem other than installing a toggle switch?
I have been looking at a Innova 3160C scanner and I am hoping it can tell me which part to replace I was told that it can read B codes. by the Innova Rep. It's a new model.
I would appreciate any of your thoughts on this Idea.
hotpipes

All codes are diagnostic only, not a "replace this" it's fixed...

[hotpipes]

aleekat & 1952Don
Which resistor and wear is located I have had to do the relearn program 6 times since we have talked. Is the resister located on the cars computer? My ignition switch has been replaced twice along with a copal fuel pumps and pump sensors. Is there a repair other than installing a switch.

hotpipes