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Code p 1749 any body have any idea - 323 BMW Cars & Trucks

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Secondary pressure solenoid communication error.

Something is up with the transmission. unplug it and replug it. add fluid. change filter. pray.

Posted on Jul 12, 2010

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Posted on Jan 02, 2017

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I have a 1998 audi a4. it will not start and gives me the p1749 and p1625 codes. how do i fix this?


code p 1625 refers to CAN databus, TCM--incorrect signal===causes --TCM trouble code/s stored---TCM incorrectly coded---wiring---matching resistor in ECM
I don't have a listing for code p 1749 but codes 1748 and 1750 are concerned with TCM defective and voltage supply low
so after you check the wiring and connections form the transmission you have 2 options
use a known good ECM to replace yours ( will eliminate any ECM faults)
and/or replace the TCM module on the transmission

Nov 14, 2015 | 1998 Audi A4

1 Answer

How to fix f85 codes in cadillac


this is what i found about code f85




QUESTION: 1991 Sedan Deville, 4.9 port injection
Car runs great until outside temp reaches 92 deg. or above. the car will start to cut out under load (take off or hill. if i pull over the car will idle fine rev the engine to a steady high rpm and it will cut out. i had a code e44 (o2 sensor rich)so i replaced o2 sensor with no effect. the other code received was f85 (Throttle body service required). I have checked all connectors and hoses attached to the throttle body. all ok. looking inside throttle body there ar two tubes under the flaps one is totaly restricted with a black buildup and the other partly blocked. Not sure what these tubes do and if that could cause engine to cut out when hot and under load. any ideas?

ANSWER: You found your problem which is this black residue which when hot turns to a jelly substance and blocks the idle air passage. You need to clean all that residue from the throttle body and do not forget to spray the small hole in the side of the throttle body just behind the throttle plate.

Dec 05, 2012 | Cars & Trucks

1 Answer

2006 ford focus displays transmission malfunction with amber light intermittently, fluid has been topped up any ideas?


I would have the body computer scanned for trouble codes. A basic code reader may not access the body computer.

Aug 12, 2012 | Ford Cars & Trucks

1 Answer

Power light comes on .cant do above 35


This is normally a problem with the fly by wire throttle system. there are several reasons this can occur. the most probable cause is the throttle body itself is either extremely carboned up causing the throttle plate to stick, or the throttle body itself is bad. you will need to have the system scanned for trouble codes first. the trouble code will give you a much better idea where the fault is. if you jusr want to try a easy repair, try cleaning the throttle body out with some throttle body cleaner.

Sep 18, 2011 | 2005 Chevrolet Colorado

1 Answer

When I accelerate my 2002 trailblazer it kinda stalls then kicks in later is it the throttle body or a sensor or?


Do you have the check engine light on at any time? If so, you need to get the codes scanned and make note of what the codes are.
It's possible the accelerator pedal sensor has a dead spot in it, causing the hesitation. It probably would be a good idea to have the throttle body cleaned (front side and back side).

Aug 20, 2011 | 2002 Chevrolet TrailBlazer

1 Answer

2000 chevy cavalier 4 cylinder was drivin fine pulled into parkin spot car started to shake then died will not stay runnin now. Any ideas??


take off the hose that goes to the throttle body and spray throttle body cleaner in it.it is basically a type of fuel,and if there is a fuel problem,the car will run.scan it for codes,and history codes and see if there is a code for the air flow meter.

Oct 28, 2010 | 2000 Chevrolet Cavalier

1 Answer

Have a 2003 kia rio with a misfire on #3 cilinder does anyone have any ideas????? I tried the coil pack didnt help??????


first thing to do is clean the throttle body. kia even has a tech bulletin on it and missfire codes along with all sorts of others are caused by a dirty throttle body

May 19, 2010 | 2003 Kia Rio

1 Answer

2005 Ford 500 engine speed problem


all codes point towards a throttle body malfunction. try cleaning the throttle body first. check for loose wires. if problem persists. replace throttle body.

Jun 26, 2009 | 2005 Ford Five Hundred

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