Questions tagged [obd-i]

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What is the difference between OBD1 and OBD2?

In my car (BMW E46 323I 1998) I have both connectors, that is, the 20-pin OBD1 and the OBD2, what is the difference between the two, I am referring rather to the functionality in my car, that is . ...
David Gonzalo's user avatar
1 vote
1 answer
157 views

Does OBD2 Hud Display use battery if only the cable is connected but not the device itself?

I have an OBD2 hud display. It consists of the obd2 cable, and the device itself. Cable can disconnect from the device. If I leave the cable plugged in, but the device is disconnected from it, does it ...
Antonis's user avatar
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1 answer
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OBD code P0433 problem

I have just had 195000km service on my Mitsubishi Triton 3.5 Ltd V6. They replaced my air filter and I now have a check engine light. Code P0433 on OBD scanner... replace O2 sensor, exhaust leak. No ...
Campbell Smith's user avatar
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0 answers
22 views

Clearing an obd 1 check engine light

I have a 1994 F-150 that threw a check engine light for my evap canister. I replaced the part and adjacent vacuum hose but I can't get the code to reset. My scanner does not have a code reset button ...
user168694's user avatar
1 vote
0 answers
41 views

1994 Ford Aspire: Different computer for automatic vs manual?

This is a 1994 Ford Aspire (prior to OBD II, fortunately). It has a simple 3-speed automatic with no computer controls. It needs to pass smog, so I can't just gut the emission controls, and my "...
Harper - Reinstate Monica's user avatar
1 vote
0 answers
23 views

The HG fell from 22 to 18 after 'addressing' post-supercharger intake leaks

I have an ODB 1 supercharged 540I/6 (E34 1995 if that matters) that was hitting 10 PSI of boost relatively easy last summer. The car has been sitting for a while, and the boost was barely touching 5 ...
Aleksey Korzun's user avatar
4 votes
2 answers
324 views

Do these 02 Sensor readings from obd1 look correct?

I have an issue at MOT test where I get high CO readings. I've triple checked the following: Exhaust leaks New downpipe Air/Vacuum leaks Compression MULTEC electronic Carb new idling control stepper ...
Andrew's user avatar
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0 answers
380 views

E34 BMW V8: unusual CAMshaft sensor signal voltage from ECU

My BMW is an E34 with an M60 engine (OBDI) and one morning started idling and running poorly enough to not be drivable. Unplugging the camshaft sensor with the engine running made no change to the way ...
w124's user avatar
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0 votes
0 answers
64 views

What are best steps to diagnose a bucking engine/

My 1992 Nissan with SR20DE (2.0 liter 143 HP o2 and MAF equipped OBD I engine, 16 valve, fuel injected), bucks. I own this car for ten years now and a lot has been replaced. Not always in attempt to ...
Richard Cedric's user avatar
0 votes
3 answers
815 views

Are all OBD current data available on the CAN-BUS without request?

I am analyzing the CAN-BUS data from my motorcycle. I logged all the CAN-BUS traffic. One time with an ELM327 adapter connected and one time without. I am searching for the value of the Intake air ...
Edgar's user avatar
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1 vote
1 answer
685 views

1995 VW Eurovan OBD I to OBD II adapter

My 1995 Eurovan has a check engine light coming on. I have a standard OBD II reader but this vehicle requires a OBD I reader. I see they sell OBD I to OBD II adapters online but I have read that with ...
Xyourobob's user avatar
3 votes
3 answers
278 views

Is there a viable option for updating OBD-I to OBD-II in order to increase possibility of engine tuning?

I've been told this is a terrible idea and just wanted greater confidence even though the warning against has been taken. I want to be able to fine tune a 1990 car with an OBD-I port in addition to ...
Adrian Stubbs's user avatar
2 votes
1 answer
127 views

10/89 (1990) Subaru Legacy EJ22 - OBDI Code 45

10/89 Subaru Legacy EJ22. NA. Multiport Fuel Injection. Throwing... Code 45: Pressure duty solenoid (turbo)/atmospheric pressure sensor circuit (non-turbo) Where is this thing located? I ...
Matt's user avatar
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3 votes
2 answers
3k views

90 Subaru Legacy - Pull Codes

I have a 10/89 Subaru Legacy I am working on. OBDI most likely, but trying to figure out how to get the check engine light to blink and do its thing. We've pulled the panel under the steering column ...
Matt's user avatar
  • 213
3 votes
0 answers
96 views

1987 GMC Sierra - Can't connect to OBD diagnostic connector

I own a 1987 GMC Sierra and it has an ECU, I took it to a workshop to see if I've any issues, when they tried to connect a diagnostic reader to the connector (underneath the steering wheel) they ...
user15878's user avatar
3 votes
3 answers
13k views

Live scan tool for OBD 1.5 GM transitional?

1995 S-10 Blazer 4.3L Vortec V6 (vin W) with Powertrain Control Module (PCM) 1995 was the OBD transitional year for GM. The PCM itself is OBDI, but the interface connector has the 16-pin D-style ...
Sparky's user avatar
  • 476
0 votes
2 answers
9k views

95 Honda civic ex, OBD port not giving check engine light codes

On my 95 Honda civic ex, the check engine light has been on for a while, so I wanted to check what for. I looked up where to find the OBD port, and found it under the glovebox. It looked somewhat like ...
Iqbal Khan's user avatar
9 votes
1 answer
46k views

Can I use an OBD2 Scan Tool on older GM vehicle?

I can get an adapter that connects my OBD2 scan tool to my 12 pin GM scan tool connection. But will the tool be able to read the codes and tell me anything useful? Or do I need to get a scan tool that ...
Jim's user avatar
  • 248
2 votes
1 answer
1k views

OBD/OBD2 port on a 1993 mitsubishi triton MJ

Does anyone know if there is an ODB2 diagnostics port on a 1993 Mitsubishi Triton MJ 4x4 Ute?
Tim's user avatar
  • 465
3 votes
1 answer
10k views

CEL 12, 21, and 55 on '94 Jeep Grand Cherokee

So, I've pulled the codes from my car based on the helpful information provided here: Check Engine Light on '94 Jeep Grand Cherokee Now, I need just a little help understanding what the codes ...
Iszi's user avatar
  • 2,591
2 votes
1 answer
31k views

Check Engine Light on '94 Jeep Grand Cherokee

How do I get Check Engine Light codes (OBD-I) from a '94 Jeep Grand Cherokee, and where can I look them up?
Iszi's user avatar
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