The Autonerdz Community Forums - 2000 Pontiac Bonneville P0102

Rafael Alvarado

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2000 Pontiac Bonneville P0102
Sep 3^rd, 2007 at 2:19pm

Hello Nerdz,

Its a pleasure to be back and see that you all been busy.

This car is very well take care of is experiencing some jerking and lack of power simptoms - intermittently.

Costumer stated that the car started acting up after an alignment job. He suspects that someone did something to his car and messed it up.

CEL is off, however there are two History Codes Recorded - P0120 and P0420.

I have to mention that the catalyc converter has been removed from vehicle.

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Rafael Alvarado Super Nerd Picogroup Offline Posts: 531 Dalton, Ga Georgia USA Gender:	Re: 2000 Pontiac Bonneville P0102 Reply #1 - Sep 3^rd, 2007 at 2:37pm I drove the vehicle with costumer, the car ran good the whole time while he was there. Later on I took the car to pick up some parts and the car started jerking and loosing power and then quit. Once I got to the shop the car was idling rough so we started gathering data this what we found.
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Rafael Alvarado Super Nerd Picogroup Offline Posts: 531 Dalton, Ga Georgia USA Gender:	Re: 2000 Pontiac Bonneville P0102 Reply #2 - Sep 3^rd, 2007 at 2:45pm Until mass air flow sensor frequency drops way below specifications.
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Rafael Alvarado Super Nerd Picogroup Offline Posts: 531 Dalton, Ga Georgia USA Gender:	Re: 2000 Pontiac Bonneville P0102 Reply #3 - Sep 3^rd, 2007 at 2:48pm And the frequency just droped to the ground. What are we going to do next?
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Rafael Alvarado Super Nerd Picogroup Offline Posts: 531 Dalton, Ga Georgia USA Gender:	Re: 2000 Pontiac Bonneville P0102 Reply #4 - Sep 3^rd, 2007 at 2:57pm Remember this codes can be the result of the following: * Vaccum Leak/Faulty PCV * Maf sensor element contaminated * Sensor signal shorted to ground * CKT /Harness problem * Faulty ECM
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Rich Barton Super Nerd Picogroup Offline Pico_Power Posts: 1,357 Iowa Iowa USA Gender:	Re: 2000 Pontiac Bonneville P0102 Reply #5 - Sep 3^rd, 2007 at 4:07pm Hi Rafael: Did you do the tap test on the maf with a screwdriver like this
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Mick LSD Guide Offline I learn every day Posts: 7,471 Toronto 400ft Ontario Canada Gender:	Re: 2000 Pontiac Bonneville P0102 Reply #6 - Sep 3^rd, 2007 at 4:51pm Hi Rafael A tap test is in order But a wiggle test will show a loose connection inside the maf not to be confused with terminal tension as I found out once Now that Rich has to many tools but the best must have been used on another car that day he should have used this one tap test at idle Mick
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Rafael Alvarado Super Nerd Picogroup Offline Posts: 531 Dalton, Ga Georgia USA Gender:	Re: 2000 Pontiac Bonneville P0102 Reply #7 - Sep 3^rd, 2007 at 4:57pm Yes Sir, Here is a tap test. But first look at this Failure Data/freeze frame data. Man you're good.
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Rich Barton

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Re: 2000 Pontiac Bonneville P0102
Reply #8 - Sep 3^rd, 2007 at 5:08pm

Mick you beat me again Smiley

I guess I should of told him about the tension test, my wife was telling me it was time for my Smiley

so I had to make it quick

My Capture was one from a couple weeks ago, no reason to put the scope on that one.

To many tools Smiley

I am just trying to catch up to you Smiley

Now it's time for a Smiley

on my

41 I'm getting old and feeling it Smiley

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Rich Barton
C.R.B. Diagnostic's

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Rafael Alvarado Super Nerd Picogroup Offline Posts: 531 Dalton, Ga Georgia USA Gender:	Re: 2000 Pontiac Bonneville P0102 Reply #9 - Sep 3^rd, 2007 at 5:10pm Here is a capture during a tap test. Also we monitor power and ground sides of sensor to eliminate of a CKT problem.
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Rafael Alvarado

Super Nerd
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Posts: 531

Dalton, Ga
Georgia
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Gender: male

Re: 2000 Pontiac Bonneville P0102
Reply #10 - Sep 3^rd, 2007 at 5:23pm

Thank you guys for taking the time to reply.

The point Im trying to make is; I know there are lots of techs trying to see which scope to get, the answer is right in front of you.

Driveability problems are no match for PICO scope.

The scope is easy to use and very powerful.

The tool is great and what makes it greater is - TOM and CARL and all of the techs helping each other out.

Thats what makes this site SECOND TO NONE !!!

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Tom Roberts

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Re: 2000 Pontiac Bonneville P0102
Reply #11 - Sep 8^th, 2007 at 11:34am

Rafael,

Thank you for the kind comments and acknowledgment. Spread the word Wink

The automotive service industry is a unique marketing challenge that requires a unique approach. IMHO, a successful approach requires violating most generally accepted marketing principles. We do things backwards. Sales takes a back seat to training and support. The marketing guys just don't get it. Can't blame them really. They just don't understand the industry. You really have to have had a career on the inside to get it. The value of what we do here at Autonerdz can only be appreciated by a professional technician.

Some may not be aware that we pioneered PicoScope in the automotive industry. At that time, we were just prophets in the wilderness. Now everyone is trying to get on the wagon Wink

This creates some marketplace confusion and more than a little consumer regret resulting from price shopping and poor research.

For the technicians out there looking at adding a PicoScope to their arsenal, I have only one thing to say:

Do your homework.

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Tom Roberts
Forums Administrator

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