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Search: Posts Made By: jeffas000073
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Forum: DIY PROM
05-19-2020, 05:58 AM
Replies: 5
Views: 1,015
Posted By jeffas000073

Strange issue using Tuner Pro RT

Hello All. I've used Tuner Pro RT many times before and have never had any issues. So definitely not a newbie when it comes to using it. Went to go use it again last weekend, and for some reason,...
Forum: Tech / General Engine
06-11-2019, 05:54 PM
Replies: 5
Views: 998
Posted By jeffas000073

Re: Need some help troubleshooting ECM PROM

How much are you asking for the PROM? Would you be willing to accept a return if it turns out it doesn't fix my issue with knock?
Forum: Tech / General Engine
06-09-2019, 09:31 PM
Replies: 5
Views: 998
Posted By jeffas000073

Need some help troubleshooting ECM PROM

Hi Guys.....been on here for a while now trying to find the source of a knock in my 1991 TA 5.7 TPI engine. Several members have really put a lot of effort in to this and I'm hoping we can finally...
Forum: DIY PROM
06-02-2019, 01:22 PM
Replies: 29
Views: 1,574
Posted By jeffas000073

Re: Knock retard w/o knock detected?

Mike......the plots that you are showing.....are those from the straight up 110 octane run, or is it the 3rd run where 110 and 93 octane are mixed?

For Everyone reading.........I was running no...
Forum: Tech / General Engine
05-10-2019, 12:17 PM
Replies: 9
Views: 724
Posted By jeffas000073

EGR Replacement step by step direction needed

Does anyone have a step by step procedure to replace an EGR valve on a 1991 T/A with a 5.7TPI? I'd like to remove as little as possible in order to get to the valve. I'm also going to replace the...
Forum: DIY PROM
03-30-2019, 11:26 AM
Replies: 29
Views: 1,574
Posted By jeffas000073

Re: Knock retard w/o knock detected?

I'll run the revised xdf on Monday. The car is still at the garage getting a new distrubutor put in.

So to help me understand.....running the old version xdf was pulling timing due to fast knock...
Forum: DIY PROM
03-24-2019, 11:21 AM
Replies: 29
Views: 1,574
Posted By jeffas000073

Re: Knock retard w/o knock detected?

Is there any way a faulty distributor could be causing this? Prior to it being replaced by another shop before all this stuff started to happen, I don't 'think' the issue was there before.....but I...
Forum: DIY PROM
03-24-2019, 11:00 AM
Replies: 29
Views: 1,574
Posted By jeffas000073

Re: Knock retard w/o knock detected?

Hopefully someone out there has some ideas.......
Forum: DFI and ECM
11-23-2018, 12:45 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

Yup.....I did verify with a light.
Forum: DFI and ECM
11-22-2018, 07:47 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

What fault in a distributor would cause it to add the timing that it shouldn't be?
Forum: DFI and ECM
11-22-2018, 04:39 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

I've already had help tuning the chip so more fuel was added and/or timing pulled out......nothing seemed to help. We had also discussed the head gaskets and their contribution to increased...
Forum: DFI and ECM
11-22-2018, 08:58 AM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

Hopefully someday soon I can be one of those guys that can commiserate with others over issues like this. I'm just waiting to see that light at the end of the tunnel.....and not have it be another...
Forum: DFI and ECM
11-21-2018, 09:04 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

T4Turtle....those are really good questions. If I could go back in time and do this all over again, questions like that would have most definitely been asked, answered, and documented. But given I...
Forum: DFI and ECM
11-21-2018, 07:23 AM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

T4Turtle.....when the timing was set at 6 BTDC, I could only faintly hear the knock at the low RPM range I've mentioned, but the timing was still being pulled out of it big time. Tuner Pro validated...
Forum: DFI and ECM
11-18-2018, 07:59 AM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

Well the drama continues. The car has been at a tuner for the last couple of weeks while they play around with it trying to determine the source of my knock and resultant timing retard. They put it...
Forum: Electronics
11-10-2018, 06:54 PM
Replies: 2
Views: 1,216
Posted By jeffas000073

Re: Data logging

I believe Tunerpro showing 'not connected' is normal. It should all work once you get datalogging. I had several people on this site help me figure out how to start datalogging, so here is a step...
Forum: Tech / General Engine
11-02-2018, 12:25 PM
Replies: 18
Views: 5,151
Posted By jeffas000073

Re: OBD1 bluetooth scanner plugged into ALDL port

No real necessity to keep it plugged in. I'm doing quite a bit of datalogging lately trying to track down a knock and was just getting sick of the usb cable always being in the way. At least the...
Forum: Tech / General Engine
10-31-2018, 04:20 PM
Replies: 18
Views: 5,151
Posted By jeffas000073

Re: OBD1 bluetooth scanner plugged into ALDL port

If I am actually running a data logger (Tunerpro RT in my case), how does the ECM know to run in a normal mode verses not running a datalogger and running in a 'weird' mode?
Forum: Tech / General Engine
10-31-2018, 01:05 PM
Replies: 15
Views: 554
Posted By jeffas000073

Re: 92 rs 3.1 stuck in open loop.

If you are getting spark knock, it may be retarding your timing.
Forum: Tech / General Engine
10-31-2018, 11:01 AM
Replies: 18
Views: 5,151
Posted By jeffas000073

OBD1 bluetooth scanner plugged into ALDL port

If I were to leave a bluetooth OBD1 scanner adapter plugged into the ALDL port all the time, would it drain the battery?
Forum: DIY PROM
10-30-2018, 09:52 AM
Replies: 34
Views: 1,815
Posted By jeffas000073

Re: Knock counts at Cruise?

Since I'm having the same issue, does anyone have an update on this?
Forum: Tech / General Engine
10-25-2018, 04:14 PM
Replies: 15
Views: 554
Posted By jeffas000073

Re: 92 rs 3.1 stuck in open loop.

Purchase a ALDL cable that connects the OBD1 ALDL port to a USB port on your laptop computer. You can get them from several different places for about $60. Don't waste a lot of time trying to find...
Forum: Suspension and Chassis
10-24-2018, 07:10 AM
Replies: 6
Views: 3,354
Posted By jeffas000073

Front tire rub to sway bar

I have a 1991 T/A. Has stock rims with stock 245/50/16's. Offset 0's in front and 16's in the back. Front end components are either new or have been checked to be fine by two shops. Has been...
Forum: Tech / General Engine
10-23-2018, 07:24 AM
Replies: 15
Views: 8,791
Posted By jeffas000073

Re: Can a spark plug gapped wrong cause spark knock?

AlkyIROC....can you recommend a specific plug I should try? Given these things are a PITA replace in my driveway without a lift, I only want to do it once. I currently have NGK UR45GP gapped at...
Forum: Tech / General Engine
10-22-2018, 07:49 PM
Replies: 15
Views: 8,791
Posted By jeffas000073

Re: Can a spark plug gapped wrong cause spark knock?

https://cimg6.ibsrv.net/gimg/www.thirdgen.org-vbulletin/640x480/img_0167_1__ed7b4bbe2848a45d6e6c59031530598b2fde8755.jpg...
Forum: Tech / General Engine
10-21-2018, 09:53 PM
Replies: 15
Views: 8,791
Posted By jeffas000073

Re: Can a spark plug gapped wrong cause spark knock?

My knock count is out of control according to datalogs using Tumer Pro. Just trying to track down the source and wasn’t sure if plug gap was a factor.
Forum: Tech / General Engine
10-21-2018, 09:30 PM
Replies: 15
Views: 8,791
Posted By jeffas000073

Can a spark plug gapped wrong cause spark knock?

I have a 1991 TA with a 350 TPI. The plugs that are installed on the car are NGK UR45GP (0.060 gap) when I believe they should be NGK UR4GP (0.040 gap). All of the specs are the same between the...
Forum: Tech / General Engine
10-21-2018, 06:33 PM
Replies: 15
Views: 681
Posted By jeffas000073

Re: People who've had false knock..

I have a question. The plugs that are installed on the car (1991 350 TPI) are NGK UR45GP (0.060 gap) when I believe they should be NGK UR4GP (0.040 gap). All of the specs are the same between the...
Forum: Tech / General Engine
10-21-2018, 05:54 PM
Replies: 15
Views: 681
Posted By jeffas000073

Re: People who've had false knock..

I removed the wire lead connected to Knock Sensor and did some more data logging. Tuner Pro showed zero knock counts, so would that mean my MEMCAL filter is okay? What exactly does the filter do????
Forum: Tech / General Engine
10-20-2018, 10:19 PM
Replies: 15
Views: 681
Posted By jeffas000073

Re: People who've had false knock..

Is the filter in the MEMCAL or the ECM? All I know for sure at this point is the knock counts are crazy high, but the actual knock is very minimal or non-existent.
Forum: Tech / General Engine
10-20-2018, 10:13 PM
Replies: 15
Views: 681
Posted By jeffas000073

Re: People who've had false knock..

Any one know how to determine if a knock filter on the original MEMCAL is faulty?
Forum: Tech / General Engine
10-16-2018, 05:56 PM
Replies: 21
Views: 769
Posted By jeffas000073

Re: Name this knock

Me being straight to the point for once.......that really SUCKS!!!! While I'm running essentially a completely stock motor, I'm getting tons of perceived knock also. I hope to God I don't end up...
Forum: Tech / General Engine
10-16-2018, 05:50 PM
Replies: 0
Views: 230
Posted By jeffas000073

1991 Trans Am with real or false knock

I already have a long, but pretty detailed post in the DFI/ECM section (post titled '1991 Trans Am 5.7 / 7730 ECM / Data Logging') of this forum discussing my journey in the attempts to get my 1991...
Forum: DFI and ECM
10-16-2018, 05:37 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

I'm sure I bored everyone long ago and no one is even keeping up on this, but posting helps keep me somewhat sane. Here is the latest update:

The knock sensor still thinks it's hearing knock,...
Forum: Tech / General Engine
10-13-2018, 11:18 PM
Replies: 15
Views: 681
Posted By jeffas000073

Re: People who've had false knock..

Does anyone have a MEMCAL that they’d be willing to let me borrow? If it proves out to fix my issue, I’ll buy it from you at a fair price. I just don’t want to throw more money at the car without...
Forum: Tech / General Engine
10-13-2018, 10:26 PM
Replies: 15
Views: 681
Posted By jeffas000073

Re: People who've had false knock..

As the owner of a 91 TA 5.7 with spark knock (not sure whether it's real or not), why would a new ICM eliminate spark knock? I've had my ICM tested and it checks out fine. Also, the poster in the...
Forum: DFI and ECM
10-06-2018, 04:26 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

Here is the last run I had with the octane boost from the start at cold/open loop all the way through closed loop (about 20 min of driving).
Forum: DFI and ECM
10-06-2018, 04:21 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

Latest update: Reviewing data logs, it was determined that my knock counts were rather numerous even though I couldn't hear pinging or knocking while I was driving. To see if the knocks (and the...
Forum: DFI and ECM
10-03-2018, 01:28 PM
Replies: 2
Views: 1,281
Posted By jeffas000073

1991 5.7L Trans Am knock sensor location

Does anyone have a picture showing where the knock sensor is on a 1991 350 Trans Am?
Forum: DFI and ECM
09-30-2018, 07:29 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

Quick update......I've run a revised .bin on the ECM and things are improving. Just received another updated .bin and will run that tomorrow. There is light at the end of the tunnel!!!
Forum: Exterior Parts for Sale
09-23-2018, 08:52 PM
Replies: 13
Views: 886
Posted By jeffas000073

Re: Parting out 92 trans am

I'm looking to purchase the right hand side headlamp assembly. The only thing I really need is the cast housing (mine cracked) since my motor is working fine. Let me know how much you'd be willing...
Forum: Exterior Parts Wanted
09-23-2018, 08:48 PM
Replies: 4
Views: 480
Posted By jeffas000073

1991 Firebird - headlamp housing

Looking for a 1991 Headlamp housing - right hand side.
Forum: DFI and ECM
09-21-2018, 08:28 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

So for anyone following this saga along, I figured I'd keep this post up to date. I have a very understanding 3rdgen forum member helping me out with the tune, so I'm not looking for any programming...
Forum: DFI and ECM
09-19-2018, 08:19 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

Mike....by the way....I received your email and next steps for the tuning. Thanks!! I'm looking forward to moving forward with tuning!
Forum: DFI and ECM
09-19-2018, 08:17 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

Possibly, but it was running not so good even before I touched the timing. In fact even after I disconnected the 'not correct' ECT and reset the timing, it still ran pretty much the same as before. ...
Forum: DFI and ECM
09-19-2018, 04:17 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

See??? I'm an idiot!! I'll try this again. Sorry.......
Forum: DFI and ECM
09-19-2018, 04:01 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

https://cimg3.ibsrv.net/gimg/www.thirdgen.org-vbulletin/1632x1224/80-est_d35b097677430fae5681d3b862956e98f9313582.jpeg
I'm disconnecting the take out (not the one connected to the coil)....that is...
Forum: DFI and ECM
09-19-2018, 02:47 PM
Replies: 81
Views: 3,823
Posted By jeffas000073

Re: 1991 Trans Am 5.7 / 7730 ECM / Data Logging

Agree I should be throwing a code when the EST is disconnected.....but I didn't. Given I get a code 12, the ECM is communicating. If the ECM were bad, it shouldn't give me even a code 12, right? I...
Showing results 1 to 50 of 90
 
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