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Lack of power and Gas Mileage.

Old Jul 18, 2025 | 10:14 AM
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No. I'm currently installing a set on a '96 Ram 1500 2WD truck for a friend. The braided lines I have on my 4WD truck came from classic tube in NY some years ago..
 
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Old Jul 18, 2025 | 06:58 PM
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Originally Posted by AtomicDog
Just FYI, I purchase my flexible brake lines from these folks - a bit more expensive, but I buy once and I'm done - https://www.crownperformance.com/
Delete duplicate post
 
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Old Jul 18, 2025 | 06:59 PM
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Originally Posted by AtomicDog
No. I'm currently installing a set on a '96 Ram 1500 2WD truck for a friend. The braided lines I have on my 4WD truck came from classic tube in NY some years ago..
I just seen they only list 2003 on that website
 
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Old Jul 18, 2025 | 10:08 PM
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Originally Posted by MoparFanatic21
I just seen they only list 2003 on that website
Contact them by phone, as they do not list all of the lines they make in their online catalog. They will make most any braided brake lines for you. My friend did that and they sent him the flexible braided brake lines for his '96 Ram 1500 2WD truck.
 
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Old Jul 19, 2025 | 07:12 PM
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Originally Posted by AtomicDog
Contact them by phone, as they do not list all of the lines they make in their online catalog. They will make most any braided brake lines for you. My friend did that and they sent him the flexible braided brake lines for his '96 Ram 1500 2WD truck.
I'll keep them in mind
 
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Old Jul 19, 2025 | 07:14 PM
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Well I ordered 2 O2 sensors, MAP sensor, and a neutral safety switch. The truck did throw a check engine light. 2 codes. P0455 & P1899.
 
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Old Jul 20, 2025 | 10:43 PM
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You need a graphing scan tool to somewhat accurately show upstream O2 data since it constantly oscillates high/low voltage at a fast frequency. Your scanner is just taking a snapshot every once in a while. OBDII has limitations especially when viewing multiple PID data the refresh slows down due to limitations of the bus. It's like downloading multiple files on a 56k modem.

Using that scanner to read downstream O2 is fine as it's normally stable voltage output. LTFT doesn't change quickly it's fine for that too.

Reading STFT with that device can lead to misdiagnosis ... it changes value to quickly for that occasional snapshot reading to be of value. Seeing a single snapshot of +20% STFT tells me little other than it could be a lean, could be a cylinder not firing, dumping O2 into the exhaust

An oscilloscope is the best way to show upstream O2 data and STFT . Can probably find a ScannerDanner youtube showing what those 2 look like on a scope.
MAP sensor is easily tested. Should read 29.9 in hg Key On Engine Off. A hand vacuum pump draw down to 20 in hg (typical idle vacuum) and read data from scan tool.

That bad mpg I'd give it a good look over. Compression test. Fuel pressure test + leakdown, injector tester (gadget that pulses injectors for a specific time, so you can compare PSI drop in fuel pressure and see if injectors have relatively same flow rate). Check dist cap and rotor. Read your plugs.

We got speed density (no MAF) so a large leak isn't a as big a deal as it is with a MAF. PCM determines air volume by RPM and MAP.

Saw a really cheap scope with built in display (no laptop needed) $130 on youtube recently so easy to pull up in my history: review
Amazon:
Amazon Amazon



 
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Old Jul 21, 2025 | 06:50 AM
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My fluke meter has a bar along with a digital read out. Will do the same thing just not a scope. I'm not knocking scopes, I love them. Problem is a lot of budget scanners with them are slow and there is a delay. This one of many "pico" type scopes out there.
Hantek Hantek
makes a scope with multiple inputs that you can read in real time but need a laptop to display it. I used one of these and like it.
 
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Old Jul 21, 2025 | 08:21 AM
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Originally Posted by Moparite
My fluke meter has a bar along with a digital read out. Will do the same thing just not a scope. I'm not knocking scopes, I love them. Problem is a lot of budget scanners with them are slow and there is a delay. This one of many "pico" type scopes out there. Hantek makes a scope with multiple inputs that you can read in real time but need a laptop to display it. I used one of these and like it.
I just use my PICO scope if needed. I did not think at all this problem requires the scope.
 
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Old Jul 21, 2025 | 08:23 AM
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Originally Posted by kevinb70
You need a graphing scan tool to somewhat accurately show upstream O2 data since it constantly oscillates high/low voltage at a fast frequency. Your scanner is just taking a snapshot every once in a while. OBDII has limitations especially when viewing multiple PID data the refresh slows down due to limitations of the bus. It's like downloading multiple files on a 56k modem.

Using that scanner to read downstream O2 is fine as it's normally stable voltage output. LTFT doesn't change quickly it's fine for that too.

Reading STFT with that device can lead to misdiagnosis ... it changes value to quickly for that occasional snapshot reading to be of value. Seeing a single snapshot of +20% STFT tells me little other than it could be a lean, could be a cylinder not firing, dumping O2 into the exhaust

An oscilloscope is the best way to show upstream O2 data and STFT . Can probably find a ScannerDanner youtube showing what those 2 look like on a scope.
MAP sensor is easily tested. Should read 29.9 in hg Key On Engine Off. A hand vacuum pump draw down to 20 in hg (typical idle vacuum) and read data from scan tool.

That bad mpg I'd give it a good look over. Compression test. Fuel pressure test + leakdown, injector tester (gadget that pulses injectors for a specific time, so you can compare PSI drop in fuel pressure and see if injectors have relatively same flow rate). Check dist cap and rotor. Read your plugs.

We got speed density (no MAF) so a large leak isn't a as big a deal as it is with a MAF. PCM determines air volume by RPM and MAP.

Saw a really cheap scope with built in display (no laptop needed) $130 on youtube recently so easy to pull up in my history: review (55) How To Test A Throttle Position Sensor With A Cheap Amazon Oscilloscope - YouTube
Amazon: https://www.amazon.com/dp/B0D3LMPQY3/
They scanner refreshes faster then my Autel and DRBlll. I understand the front O2 will change rapidly. Compression test is fine as the motor is strong. Fuel pressure test is fine as well. Injector tester I don't have.
 
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