Question about 1993 Pontiac Grand Am

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93 Grand am rough idle/misfiring

Just had the codes read on my car.. Came up with the error code DTC 34... now I looked up the code on the internet but I'm not really sure what it means.. DTC - 34 MAP sensor circuit error (signal low indicating high vacuum)... Can anyone explain this in layman's terms for me please?

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You answered your question. Buy a new map sensor google the location on the engine and replace it

Posted on Jan 13, 2018


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There is a loose connection on the sensor, or clean it with a fine Sandy paper, it's best to replace. If the problem persists, see a specialist.

Posted on Jan 13, 2018


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Posted on Jan 02, 2017


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have the tcc checked, if it stalls when coming to a stop

Posted on Oct 26, 2009

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1 Answer

What is the airbag code 34 for a 2005 Lincoln Town Car Signature Limited?

Pinpoint Test H: LFC 33 and 34/DTC B2292 - Restraint System - Safety Belt Pretensioner Status
Normal Operation
The restraints control module (RCM) checks all of the safety belt pretensioners for faults. If the RCM detects one of the following faults on any of the safety belt pretensioner circuits, it will store diagnostic trouble code (DTC) B2292 in memory and flash either lamp fault code (LFC) 33 or 34 depending on the fault (or higher priority code if one exists) on the air bag indicator.
Fault Conditions
The RCM monitors for the following fault conditions:
  • Low resistance.
  • Circuit open.
  • Circuit short to battery.
  • Circuit short to ground.
Possible Causes
A safety belt pretensioner status fault can be caused by:
  • Wiring, terminals, or connectors.
  • A faulty pretensioner.
  • RCM.
PINPOINT TEST H: LFC 33 AND 34/DTC B2292 - RESTRAINT SYSTEM - SAFETY BELT PRETENSIONER STATUS NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough Inspection and Verification before proceeding with the Pinpoint Test.

Apr 07, 2018 | Lincoln Town Car Cars & Trucks

1 Answer

Jeep code 34

shoe drops, does it run?
97 is OBD2 in usa, so why not do a real scan, the blink codes do NOT tell all going on.
you could RTM here, read the manual here, the FSM.

34 Dead spark (primary side) DTC errors (P0351)

is it a no start, cranks ok."?
does the ASD relay drop out?
is there spark for 2 seconds cranking, and ASD drops.?
it seems the ignition coil is bad or unplugged. (low voltage side)

but doing a full scan , while cranking tells more, (nostart)
or running......???????????
tells way more.

Apr 10, 2014 | 1997 Jeep Cherokee Country

1 Answer

Dtc 14 17 18 19 28 29 30 32 33 34 35 36 46 51

TYPE: OBD 1 Code 13 etc & read for hours

Could Type: 1989 Cadillac OBD 1 Codes

It's all there on the internet

Codes,Problems & Solutions--- dozens-- if not
hundreds of sites,forums,tech info,etc

Apr 02, 2014 | 1989 Cadillac Seville

1 Answer

What's the actual meaning of DTC codes 41, and 58, for this vehicle?

the meaning of codes 41 and 58 is:

DTC - 41 Ignition control error

DTC - 41 MEM- CAL error
DTC - 41 Cam sensor sinal error

DTC - 58 Trans fluid temp sensor circuit error (low voltage)
DTC - 58 VATS System error

I hope this is helpful

Feb 18, 2013 | 1992 Buick LeSabre

1 Answer

Chevy express 1999 didn't start, i have a code p1336. i've change the crank shaft sensor but it didn't strat and i have a P1336 code again

Trouble Code: P1336

CKP Sensor System Variation Not Learned
Possible Causes:

Set the parking brake and block the drive wheels for safety. Verify the hood is closed. Read the trouble codes. If a code is set, refer to that code. Start the engine. Allow engine temperature to reach at least 158?F (70?C). Then key off. Select Crankshaft Position Variation Learn procedure on Scan Tool & start the vehicle. Apply the brake pedal firmly and verify the selector is in Park. Increase accelerator pedal position until fuel cutoff is reached at the test rpm (e.g., 5150). Quickly release the accelerator pedal after fuel cutoff is reached. The CKP system variation compensating values are learned when the engine speed (rpm) decreases back to idle speed and the procedure terminates. Read the trouble codes and recheck for DTC P1336. If DTC P1336 runs and passes, the CKP system variation "learn" procedure is complete. If not, look for other codes. If no codes are set, repeat the test procedure.

Jul 24, 2012 | Chevrolet Express Cars & Trucks

1 Answer

I have a 1999 chrysler 300m. I want to know what does the PO 700 code mean?

A couple of things to consider before I tell you more about this mysterious code... and everyone read on so you can answer you own questions:
1. Change your trans fluid with ONLY Chrysler 4 fluid. and change the filter.
That should be about 30 bucks if you do it. Dispose of the used fluid PROPERLY like in your local recycling center or at a local parts store equipped to handle used oils.
2. change the sensors, both input (L) and output (R).
3. Clear the codes with a good OBD reader that sees and deletes Transmission errors. If you can't do that, then replacing the moon will not help.
Read similar trans issues here on FIXYA for details.
Now then:
This is a Standard Chrysler error code for transmission error codes.
(From elsewhere on FIXYA:)
"This is an informational DTC (Diagnostic Trouble Code) letting you know that it is stored in the Transmission Control Module.
Erase this DTC from the PCM after all Transmission DTC(s) have been repaired. (see what I mean?)
Using a scan tool, read the Transmission Controller DTC and refer to the Transmission Category and perform the appropriate symptom."

EATX stands for Electronic Automatic Transmission Controller.
There are four computer systems talking to each other over Chrysler proprietary bus called CCD bus.Those riding the bus are: Engine controller, transmission controller (the one we're talking about), body controller and instrument cluster.
This guy is a really smart dude who approaches the problem from a really neat perspective: This may be more than you want.
Most everyone will tell you to take it to a dealer and have them check it out, but first try to change the fluid, and filter (and gasket), change the sensors and zero out the codes first before you spend the SAME amount of money for them to tell you you are about to be screwed. (Ask them what it costs for a basic diagnostic) I'll guess. $100. If this method fails, then okay, take it to a trans expert and tell them what you've attempted so far and that you think it is deeper than you expected. for 40-100 bucks you may hit on it WITHOUT paying all those dollars. Let me know if you can pursue this and if you have a modicum of success with this approach. I'd like to know how imaginative you can be by not saying "this is too deep" versus "I'll give it a try". Let us know.

Nov 18, 2011 | 1999 Chrysler 300M

1 Answer

Why the service LTPWS light stay on on my 1994 corvette LT-1

You need to reset the low tire pressure fault waring, this can be a defective sensor. Read the procedure below.
Replace sensors as required.
Clear DTCs by grounding DLC (under dash in front of driver) terminal 6 to 5, three times in ten seconds.
Receiver/control module will confirm that its memory has been cleared by illuminating both the "L0W/FLAT TIRE" and "SERVICE LTPWS" lamps at the same time. Both lamps will remain ON until the ignition is turned to the OFF position and then back to "ON".

RF sensor MUST be color code BLUE.
If you still get codes, read out the DTCs by connecting DLC terminal 6 to 5 to flash LTPWS. Look for 23, 33, 43, 53 or 24, 34, 44, 54. Right front is LOW TIRE DTC 53 and WHEEL SENSOR DTC 54.

All codes will be preceded with DTC 12. DTC 99 is possible receiver fault.

Nov 03, 2011 | 1994 Chevrolet Corvette

1 Answer

Engine shut off willnot crank after heating up geting code 34

DTC - 34 MAP Sensor Circuit Error (Signal Low Indicating High Vacuum)

The ECM uses the Manifold Absolute Pressure (MAP) sensor as an indication of engine load. High voltage would indicate low engine vacuum and higher engine load. Low voltage would indicate high engine vacuum and lower engine load. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

Fault Code Description:
* 34 - MAP sensor circuit error (signal low indicating high vacuum)

* Poor engine performance
* Engine running lean (not enough fuel, hard starting, lack of power)

Common Problems:
* GM MAP sensors do not commonly fail
* Due to erratic engine vacuum, other engine performance problems can cause a code 34 to set

Good luck (remember to rate this answer).

Mar 20, 2011 | Buick Riviera Cars & Trucks

1 Answer

Air bag flashes code 32. what is the problem

Code 32 is a Lamp Fault Code

You also will have DTC Codes (diagnostic trouble codes)
for the LFC Codes

I don't have 32 ,as it will be in the factory workshop manual

33 &34 are seat belt pretensioner faults

Answer: you need professional help, or at
least a scan tool with current software

Feb 24, 2011 | 2000 Lincoln Navigator

2 Answers

I have a 1994 chevy work truck with a 305. I have trouble codes # 15, 22, 33, 34, 44, and 53. The egr valve had been removed but apeared good. Someone had put a plate over the port. Additionaly someone...

DTC - 15 Engine coolant temp sensor error (low temp indicated)
DTC - 22 Throttle position sensor error (signal low)
DTC - 33 MAP sensor circuit error (signal high indicating low vacuum)
DTC - 34 MAP sensor circuit error (signal low indicating high vacuum)
DTC - 44 Oxygen sensor error (lean condition indicated)
DTC - 53 Digital EGR Valve solenoid 1 error

MAP is short for manifold absolute pressure sensor,,it senses the manifold pressure and applies the right amount of gas with the right amount of ignition timing so the car runs and performs well if this does not work properly,it throws off the whole loop cycle for the computer,,which in turn makes it run badly,,and get poor fuel economy,,it causes one to have a lack of power,,combined with a loss of fuel economy,,and also poor take offs,,and sometimes an occasional stalling,,i hope this helps.

EGR system was really developed for was emissions control. the purpose of the EGR valve is to regulate the amount of exhaust gas recirculated back into your combustion chamber to send the gasses through another cycle in order to eliminate any excess pollutants like NOX (nitrogen oxides), N2 (nitrogen), O2 (oxygen), CO2(carbon dioxide) and HC (Hydrocarbons). the EGR was also developed to lower combustion temps that's another reason why the exhaust is recirculated the exhaust gasses will not burn therefor lowering combustion temps, because there is less "usable" air going into the cylinders.

Nov 17, 2009 | 1994 Chevrolet C/K 2500

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