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Search: Posts Made By: fdryer
Forum: L-Series Tech 03-17-2011, 12:40 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

As you know, the ecm/pcm reads the knock sensor for background noise/base reference. There isn't any info on what happens if these sensors are disconnected so I theorized the lack of any connection...
Forum: L-Series Tech 03-17-2011, 08:10 AM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Although it was mentioned to try disconnecting the suspect knock sensor, I didn't want to comment on disconnection causing another issue - that it would be detected on the next engine start and cause...
Forum: L-Series Tech 03-06-2011, 03:20 AM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Look over the knock sensor DTC's, P0324, P0327, P0328. Each flow chart asks if low rpm outputs knock sensor voltages between 1-6v. 125v seems a bit high for one sensor against the other one at 2.3v.
Forum: L-Series Tech 03-04-2011, 08:49 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

I agree with substitution of at least one knock sensor with a resistor of equal value or a spare sensor. I don't know if disconnection can do the same, other than generate an error code.
Forum: L-Series Tech 03-02-2011, 10:58 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Theoretically, if the knock sensor(s) are disconnected, either the ecm doesn't detect knock anymore and hums along merrily or the disconnect is detected and an error code turns on the SES indicator....
Forum: L-Series Tech 02-28-2011, 09:44 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Well, somebody's lying. Not you. Either the tac or ecm is. Playing devil's advocate, isn't the ecm supposed to be able to detect throttle plate position between the two tps's in comparison to the two...
Forum: L-Series Tech 02-28-2011, 07:27 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Ok, more good/bad news. The picture is my tac with the vacuum port(?) being sized down to accept a small diameter black nylon vacuum line going to the fpr, adapted back up to the rubber line attached...
Forum: L-Series Tech 02-28-2011, 11:33 AM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

I forgot about the fpr and vacuum line going there. I'll try looking again this afternoon, in between rain drops. We're expecting rain showers. The few squirts of fuel onto my hands smells Awful!?...
Forum: L-Series Tech 02-28-2011, 10:14 AM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Alright, here's the good news and bad news, depending on your point of view.

After the morning drive to work I shut off the engine and attached my fuel pressure gauge; ignition ON, engine OFF -...
Forum: L-Series Tech 02-28-2011, 12:50 AM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Ok, ok already!? You don't have to twist my arm!? :arr:

I never had a need to measure fuel pressure with my old gauge (loaned out to someone and it still worked) but this seems like a good...
Forum: L-Series Tech 02-27-2011, 10:05 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Service manual says 55psi. You measured 43 psi............................:clock:
Forum: L-Series Tech 02-26-2011, 02:21 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Puleeeese don't throw those specs at me. :dizzy: Wading through all that gives me information overload; I can only soak up what fits into the one cell between my ears, you know.......:clock:

I've...
Forum: L-Series Tech 02-25-2011, 10:58 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

You looked at the map sensor but didn't check it against a readout on your Tech II. Any data on it?

I'm ignoring the spark retard(?) and shortened pulse width as throttle is...
Forum: L-Series Tech 02-24-2011, 02:30 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

I'm not sure how pressure swings during acceleration/deceleration but to cloud the fuel enrichment phase of engine operations; injector opening time is just variable pulse width to allow short pulses...
Forum: L-Series Tech 02-16-2011, 02:04 AM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

There's an interesting post in the Vue forum about replacing a TAC after exhausting every possible fix. Another TAC from a junk yard corrected symptoms (don't remember the issues) and upon...
Forum: L-Series Tech 01-21-2011, 11:08 AM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

We have one (1) cps (ckp) and one (1) cmp (camshaft) sensor for more sophistication. Since its being discussed, you might monitor camshaft sensor output. A failed one upsets the ecm some but the...
Forum: L-Series Tech 01-20-2011, 02:09 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Reviewing this thread again I must have missed post #8 about the lack of vacuum on the fuel pressure regulator. Did you ever track that vacuum issue to where it was lost? This may be one clue as...
Forum: L-Series Tech 01-14-2011, 01:38 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

The rear O2 sensors work as you described, linear with no switching since its just monitoring what ever you were cooking. I believe these remained the same and haven't changed except for adding...
Forum: L-Series Tech 01-14-2011, 11:12 AM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Ummm, you're wrong, and only about the RED HOT catcon you created. It didn't run lean. It ran too rich with excessive fuel. "A Converter will get red hot when raw fuel is introduced directly into...
Forum: L-Series Tech 01-09-2011, 01:06 AM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Its unfortunate that you have to go through all that rigamarole to gain some new info. What's interesting are the two different knock sensor signals. Perhaps this may help; disconnect both sensors...
Forum: L-Series Tech 01-03-2011, 07:54 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Its all good. Dragging me along allows me to read some more while stalling for some bright reply. :arr: I'm interested in the outcome.

The TCM is under the passenger side window cowling. Look for...
Forum: L-Series Tech 01-03-2011, 06:39 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Well, you're dragging me along.......

Comm problems? If so then I would be looking for loose wiring connections, chafed wiring, etc..

Here's the list for the ABS components;

(1) Right Rear...
Forum: L-Series Tech 01-03-2011, 06:19 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

Uhh, sometimes the mysteries of life refuses to divulge answers to the ignorant no matter how much we pay attention. Been there done that. **it happens!? :|

The wrench light, if decoded, may give...
Forum: L-Series Tech 01-03-2011, 04:21 PM
Replies: 120
Views: 18,416
Posted By fdryer
Forum: L-Series Tech 01-03-2011, 01:50 PM
Replies: 120
Views: 18,416
Posted By fdryer
Re: Noob Here to Saturn but not to GM-L3000 Question/Help Needed

:no: You already lost me at Lambda. :sleep:

Everything I read about Lambda doesn't mention numbers and reference is made only to the actual millivolts levels I'm accustomed to; 0.1 - 0.9 volt....
Showing results 1 to 25 of 30

 
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