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Old 05-09-2017, 07:04 PM   #1 (permalink)
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Ok its Tuesday...

Im sorry everyone, ive tried searching everywhere and i can not find what im looking for. Please excuse me as i know jack about suzukis. My nephew just bought a 95 tracker 16v 5spd. I am trying to help him with it.

It is running a bit rough, idle rough when warm, and stumbles while driving. So far ive had him clean the throttle body (about 1/8" of carbon built inside of it) cleaned the MAF sensor, and cleaned the charcoal canister. Next time i can get him in the shop were going to work on cleaning the EGR system, which judging from the condition of the throttle body im sure its clogged.

I pulled the code for the MIL and it came up as 32, MAP sensor low voltage. Here is my Tuesday question; where the hell is this sensor hiding? I googled it, and its not the same as anything ive found online so far.

Once i locate it i plan to do the obvious things like check the plug, wiring, and possibly remove and clean the sensor.

Thanks in advance, and my apologies for cluttering up the forum.
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Old 05-10-2017, 06:52 PM   #2 (permalink)
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Look for vaccum leaks, that would be my first guess at it running rough.
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Old 05-11-2017, 07:35 AM   #3 (permalink)
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Thanks. All the lines look good, but havent sprayed them yet.
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Old 05-11-2017, 08:49 AM   #4 (permalink)
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A code 32 is not a valid code for a 16V. So you must be reading the flashing of the light wrong. Or it doesn't have a 16V. A code 32 is valid for a 1995 trackick with an 8V engine.
Old spark plug wires will cause rough running on 16Vs.
Spark plugs with too large of a gap can cause missing/rough running too. Use NGK plugs.
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Old 05-11-2017, 10:59 AM   #5 (permalink)
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I would start with changing the plugs.
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Old 05-11-2017, 12:36 PM   #6 (permalink)
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Originally Posted by skyhiranger View Post
A code 32 is not a valid code for a 16V. So you must be reading the flashing of the light wrong. Or it doesn't have a 16V. A code 32 is valid for a 1995 trackick with an 8V engine.
Old spark plug wires will cause rough running on 16Vs.
Spark plugs with too large of a gap can cause missing/rough running too. Use NGK plugs.
It is definitely a 16v. Maybe it is 23 instead of 32?
Code 23 is intake air temp high voltage

This is the page I found codes on
95 Geo Tracker 1.6L OBD/OBD2 Trouble Codes

Plugs, wires, cap, and rotor are all new. I did not check the gap. We'll take them out and check/inspect them. What is the correct gap?
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Old 05-11-2017, 01:08 PM   #7 (permalink)
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Just popped the door open and it has a build date of 3/95. He bought it told that it is a 1995. Now im thinking this may be a 96?
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Old 05-11-2017, 02:21 PM   #8 (permalink)
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A 3/95 build date makes it a 95. A 96 or later needs a code scanner to read the codes and they will be 4 digit codes.
A 96 will also have airbags and also a grille that is "puffy", it sticks out from the front of the car.
Everything I can see tells me it is a 95 and it is a 16V, obviously.
A 23 would make sense. The IAT sensor is in the top half of the air box (where the air filter is).
A code 23 will flash the light like this flash, flash, pause, flash, flash, flash, a pause noticeably longer than the pause between the "2" and "3". Then it will either repeat the code or flash the next stored code. If you watch the light flash sequence enough times, you will see the pattern.
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Old 05-11-2017, 03:18 PM   #9 (permalink)
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Ok, i found some problems. When pulling the plugs the front 3 were only finger tight, gap was at like .035. I set all of them to .030. But they were new iridiums.

The back plug however...
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Old 05-11-2017, 06:13 PM   #10 (permalink)
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We cleaned the entire EGR system. The ERG and tube going from the intake down was 100% clogged.

Between that and the plugs we fixed the problem..

Thanks for the help everyone.
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Old 05-19-2017, 09:14 AM   #11 (permalink)
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We cleaned the entire EGR system. The ERG and tube going from the intake down was 100% clogged.

Between that and the plugs we fixed the problem..

Thanks for the help everyone.
That is common to have the EGR completely clogged. Pain in the ass to clean for sure.
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