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Search: Posts Made By: billr
Forum: S-Series Tech 01-17-2018, 05:55 PM
Replies: 17
Views: 175
Posted By billr
Re: PCM P/N Must Match?

If you get 12V to any one of those pins (A, C, E, G, & H) you should get it to all. If not, there is a problem with the UHJB, fuses, or wiring from the UHJB to 10-pin connector.

Yes, the FP relay...
Forum: S-Series Tech 01-17-2018, 05:49 PM
Replies: 4
Views: 78
Posted By billr
Re: SL-2 starting problem after sitting 3/4 days

When you hold the throttle all the way open you invoke the "flood clear" mode inhibiting the injectors; so it probably is flooding, if WOT helps. I gotta ask... have you checked/changed the OEM ECT...
Forum: S-Series Tech 01-17-2018, 01:02 PM
Replies: 17
Views: 175
Posted By billr
Re: PCM P/N Must Match?

Hmm, I wasn't giving a clear description either.

OP, 12V on that harness connector is provided through the fuel-pump relay, which is controlled by the PCM. However, if the engine runs normally...
Forum: S-Series Tech 01-16-2018, 11:07 PM
Replies: 16
Views: 292
Posted By billr
Re: 2002 SL2 Slamming In All Gears

Keep that picture handy, Chaz, it is sure to be useful in the future!
Forum: S-Series Tech 01-16-2018, 11:04 PM
Replies: 17
Views: 175
Posted By billr
Re: PCM P/N Must Match?

Oh, I did read it, and it wasn't clear to me; neither was the info in that most recent post of yours.

If it wasn't clear to me, I figured it may not be clear to the OP that the PCM does not...
Forum: S-Series Tech 01-16-2018, 08:28 PM
Replies: 17
Views: 175
Posted By billr
Re: PCM P/N Must Match?

Is this gen3 the same as gen1/2 in that the 12V supply to those trans solenoids is independent of the PCM? If so, missing 12V on any of those power sockets in the harness means you have problems...
Forum: S-Series Tech 01-16-2018, 08:13 PM
Replies: 16
Views: 292
Posted By billr
Re: 2002 SL2 Slamming In All Gears

Those letters are on either the harness connector or the trans header, maybe both; but they are very small and hard to read. Yeah, magnifier and bright light, no matter how young and perfect your...
Forum: S-Series Tech 01-15-2018, 03:50 PM
Replies: 9
Views: 154
Posted By billr
Re: Valve body replacement - drop transmission?

There are four Sonnax upgrades, which of those will their VB include?
Forum: S-Series Tech 01-14-2018, 06:44 PM
Replies: 2
Views: 85
Posted By billr
Re: 2002 Saturn Sl1 Automatic with P0732, P0733, P0783, and reverse bang

Burning pins in two different VB connectors is probably because of loose/corroded sockets in the harness connector. The resulting resistance at the connectors tends to heat up both the pins and...
Forum: S-Series Tech 01-13-2018, 08:08 PM
Replies: 16
Views: 292
Posted By billr
Re: 2002 SL2 Slamming In All Gears

Check LP by using a 300 psi mechanical gauge on a long hose. It connects to the port where the trans-temp sensor screws in, just above the trans spin-on filter. The turbine-speed sensor is also...
Forum: S-Series Tech 01-12-2018, 05:06 PM
Replies: 21
Views: 316
Posted By billr
Re: One Headlight Out???

The first post also said the 12V at the socket was OK. That's why I want voltage read right at the lamp terms. If you apply the correct voltage (12V) to a good lamp... it lights up. We must be...
Forum: S-Series Tech 01-12-2018, 01:27 PM
Replies: 36
Views: 699
Posted By billr
Re: Engine flooding when cold.

You can't measure the 2490 ohms directly, so that is only a rudimentary check; but I don't think you did it correctly. As I read your reply, you read resistance across the sensor alone, and then...
Forum: S-Series Tech 01-12-2018, 12:02 PM
Replies: 21
Views: 316
Posted By billr
Re: One Headlight Out???

How did you check for 12V at the lamp socket? Did you check between the two harness wires, or use a handy chassis ground for one of the meter probes?

Did you check that voltage with the lamp...
Forum: S-Series Tech 01-11-2018, 11:20 PM
Replies: 16
Views: 292
Posted By billr
Re: 2002 SL2 Slamming In All Gears

Check the trans fuse for the line-pressure circuit, I think it is labelled "TRS LP"
Forum: S-Series Tech 01-11-2018, 04:50 PM
Replies: 36
Views: 699
Posted By billr
Re: Engine flooding when cold.

"Hmm... I see I never answered your question about what voltages you should see one the ECT sensor signal wire. If there is no joy after doing the other things suggested, we can get back to...
Forum: S-Series Tech 01-10-2018, 07:58 PM
Replies: 15
Views: 343
Posted By billr
Re: 2001 Sc2 - Odometer all Zeros - Won't start

Well, you have a variety of symptoms here. I would start by trying to track down the "cranks, fires, but won't run" problem. That should be easiest to find and fixing the cause of that may fix a...
Forum: S-Series Tech 01-07-2018, 03:13 PM
Replies: 19
Views: 425
Posted By billr
Re: Failing thermostat or ECTS?

It sounds like the t-stat is not closing. It shouldn't take so long to heat up, and sure shouldn't go back down to that 125 when you start driving around.
Forum: S-Series Tech 01-07-2018, 03:06 PM
Replies: 22
Views: 329
Posted By billr
Re: P303 Code with No Start

"1.) rewire the spark plug wires properly (1432"

I'm not sure what you are intending there. I don't think 1-4-3-2 relates to anything; not the cylinder numbering, not the plug wires n the coil...
Forum: S-Series Tech 01-06-2018, 11:45 PM
Replies: 45
Views: 910
Posted By billr
Re: Smog Tech thinks it might be the Converter.

Well, I would be curious to see what #2 is (dry) after the engine has been run for a while. It wouldn't hurt to try #1 again, too. Sometimes a bit of crud can get on a valve/seat... you can always...
Forum: S-Series Tech 01-06-2018, 11:40 PM
Replies: 22
Views: 329
Posted By billr
Re: P303 Code with No Start

A cold engine requires a considerably richer (more fuel) mixture to fire-up and run; especially to fire. The PCM uses that ECT signal to determine how cold the engine is and how much extra fuel to...
Forum: S-Series Tech 01-06-2018, 11:27 PM
Replies: 45
Views: 910
Posted By billr
Re: Smog Tech thinks it might be the Converter.

Is there a question there?

The compression readings indicate #1 is tired and you put in more oil than needed into #2 for a wet test. The plugs look OK, mine are always similarly clean and white,...
Forum: S-Series Tech 01-06-2018, 04:54 PM
Replies: 22
Views: 329
Posted By billr
Re: P303 Code with No Start

Any engine problem could be related to poor compression, so there is no way we can dismiss a possible compression problem until the readings are taken.

As you say, if you buy a decent compression...
Forum: S-Series Tech 01-05-2018, 09:12 PM
Replies: 22
Views: 329
Posted By billr
Re: P303 Code with No Start

Yeah, well, taking compression readings is the first thing to do. These engines seem prone to burning exhaust valves on #3 and #4. And, yes, it can get dramatically worse very quickly, like in just...
Forum: S-Series Tech 01-05-2018, 11:08 AM
Replies: 21
Views: 316
Posted By billr
Re: One Headlight Out???

Fetchitfido, that one you posted is easier for me to follow; do you have confidence in it, and that it applies to this specific year vehicle? I'll have to study it later.

It's disappointing how a...
Forum: S-Series Tech 01-05-2018, 10:58 AM
Replies: 21
Views: 323
Posted By billr
Re: Transmission or other?

Changing the ECT sensor is pretty easy; but changing the t-stat is much harder. I would use live-data to read ECT before changing either, but especially the t-stat; and especially if you aren't...
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