97 BMW 540i (Check Engine)

I have a 97 540i that continues to have the check engine light come on. Please help...



First let me say that I replaced the spart plugs with Plattium 4 plugs, 2 new aftermarket Cats, 2 new pre-cat O2 sensors, new Cam Position Sensor and new Throttle Position Sensor.



The car is also hesitating only at start up. It will start up when the car is cold, but hesitation last longer when the car is already hot. The longer I drive and turn the car off the longer it takes to restart. If I let it cold down it starts up faster but still has hesitation at start up. :deadhorse:

I am now getting engine codes; 06,76,OA,12,OC,14,Od,05 which are:

After-Cat O2 sensor heater 5-8

After-Cat O2 sensor heater 1-4

Pre-cat O2 sensor 1-4

Pre-cat O2 sensor 5-8



I started getting these codes after I replaced the 2 pre-cat o2 sensors last week:eyecrazy.



Before I was getting:

Catalyst efficiency 1-4

Catalyst efficiency 5-8

Misfire, catalyst damaging 1-8

Misfire random.



I am so confused now.



Please HELP!!!

carlos.aponte45@yahoo.com
View complete forum thread


Related threads

Check Engine Light Fault Code

Today my 2000 BMW 540I check engine light came on. I took it to the mechanic and they told me the code was 0420 in which he stated that my catalytic converter is bad and that I have two of them and he wasn't sure which one that would be. My question is that has anyone had this ...

Bmw 540i blown engine? opinions

Hey everyone I have a bmw 540i which i just recently changed the timing chain guides about 3 weeks ago, car ran perfect after, no codes, no misfire, no check engine light. Couple days ago it was leaking coolant so i took the intake manifold and valley pan, but found ...

► BMW 540i Basic Engine Swap Questions

I have recently purchased a 1999 BMW 540i with 163k miles and an automatic transmission. The engine needs to be ... ? How long would the entire procedure removal and replacement of the engine take and about how much would it cost if done locally (not by the dealership)? Anything else ...

1999 BMW 528i CHECK ENGINE LIGHT ON

HI ! everyone, i just brought a used 1999 bmw 528i less than month. now my dash broad have the light came up this morning called " CHECK ENGINE warning lamp for Canadian models" . So what should I do and is anyone know what kind of problem is it? Thanks for reading my post.

97 528i CHECK ENGINE LIGHT!

My 97 bmw 528i check engine light came on about a week ago. I tried to tighten the gas cap and waited a couple days but that didn't work. I also tried going to Auto Zone and have them check the codes on the OBD but he said the the connector I have under my dash is smaller than the one he ...

2001 540i check engine soon

Hey, My check engine soon light just went off. Do you know how I can find out what the code is? Is autozone free to check? Thanks

540i check engine light

My check engine light is on but my car drives fine, no weird sounds, no leaks. Im wondering if its just my exhaust or maybe idk. Any ideas?

UUC now has upgraded E39 front suspension bushings in stock.

... and lower front control arm (traction strut) suspension bushings for all 1996-2003 E39 M5, 540i, 530i, 525i ... E39 5-series and others as noted below: FCABE39-L: M5, 540i, E38 7-series only. FCABE39-L-EARLY: 525i, 528i, 530i, and Z8 FCABE39-U: M5, 540i, E38 7-series only. SPECIAL ...

Dream 2002 bmw 540i

... bought my dream e39 although I wanted it in 6 speed but I am satisfied with what I got 2002 BMW 540i-m sport ... black on black, Everything is awesome in the car untill I go to the engine bay and I hear some knocking noise ... sensor, vacuum leak, o2 sensor. I check and I realized that the cam shaft sensor ...

How much Should Head Gasket Replacement Cost BMW 540i, Any Techs?

... shop and they said worst case senario we will put a used engine in it if there is any damage and it would be just shy of 4,000$. ... . Now keep in mind to do the HGs in these cars the engine has to be removed, understandable. I was charged ... is, whats a rough estimate on a BMW 540i 4.4L V8 1997-2003 head ...

BMW 540i???? - for europe unusable machine....

... of expensive car (running costs)....... I just envy you..... What a cheap petrol you have there!!!!! In matter of E39, I wish to have 540i....... What a good car and perfect ... 530d with 193hp engine and this is also an awesome car! Diesel is much more cheaper in here and BMW 540i are rather ...

R.I.P. BMW 540i :'(

... a very sad day for me. I wrote off the 540i this morning after spinning out on black ice. ... speed limit, so I'll take that as it comes. In the meantime theres a 1996 BMW 540i Automatic that has perfect components ... panels, doors and windows being broken. The engine and gearbox are in perfect working ...

2001 BMW 325I P102 Code & Check Engine Light Issues

... if you know answers to this questions' scenarios. I have a 2001 BMW 325I and its in great shape. I recently bought it and the check eng light was on ... a new Mass Air Flow Sensor and installed that. The vehicle then ran 94 miles before the check engine light popped back on. Which was ...

BMW 540i engine timing question.

I have a 2000 BMW 540i with the 4.4 Liter engine. I am trying to do the engine timing after changing the head gaskets. Does anyone know how I can determine if the engine is at Cylinder 1 Top Dead Center? Are there any makings I should look for on the harmonic balancer? I see a ...

E39 540i 6 2000 check engine keeps goin

Ok so I had a check engine light for a camshaft position sensor citcut malfunction.. Went and bought a new cps ... day next day start the car cel goes right back tje f**k one . Go return the sensor to bmw and get another.one pop it in drives good for about 2days. todays the second ...

99 bmw 540I rough acceleration

i have a 1999 bmw 540i E39and i have a problem when i to step on the accelerator it starts misfiring and it will do it until i let the accelerator go. i checked the check engine light and the only code that comes up is multiple cylinder misfire. did anyone have this problem.

FS: Lots of Dinan goodies for E39 BMW 540i

I am selling some DINAN parts that came off of my 2000 BMW 540i. Please serious buyers only. Feel free to pm me ... .00 Asking $449 obo + shipping !! __________________________________________________ _______________ E39 bmw DINAN strut tower brace asking $150 obo + shipping ...

1999 BMW 540i Dead

1999 Bmw 540i 130000 miles automatic..... Hello I was driving the other day in my ... but why will it not turn over? did i blow the head gasket? did the engine sieze and lock up? The temp gauge was within normal operating temperatures, I checked dip stick and did not notice any coolant mixed.... the ...

2003 BMW 540i/6 M-Sport selling question

Hi so my ex boyfriend had bought me a 2003 BMW 540i/6 M-Sport. It's the sterling silver/black interior. It's a wonderful car and first car I ... so want to sell it and buy a smaller and more suitable BMW for a women, like an automatic. I just don't want to get ripped off because I am ...

How reliable are 2003 M5 and 540i?

Hey guys, I am getting rid of my 01 GS430 Lexus and going back to BMW. Lexus is a good reliable car, ... window motor. That was my favorite car I ever had. So I am considering 2003 M5 w/ NAV or 2003 540i auto or 6M, ... about 2003-2004 X5's, 745i's and new 5 series. 2003 e39 M5 and e46 M3 got great reviews ...

2001 BMW 540i Battery Venting

... had the original OEM BMW battery replaced on my 2001 BMW 540i. I went with a Sears Diehard it did ... the battery compartment. I looked everywhere in the trunk battery compartment. I checked with a BMW auto repair shop. They told me on that year BMW (2001) with the battery in the trunk it may ...

1999 BMW 540i Part Out or Not?

... recently acquired a 1999 BMW 540i in need of an engine. I need to make a decision sometime soon. So, here are my options, and questions... 1. Replace the engine and keep the car. This car has the Vanos which is new for '99 and the price of an engine ranges from $1800-$2500 delivered. Labor ...

2002 BMW 540i Test Drive

I want to buy a 2002 BMW 540i with 45k miles and one owner. I Test drove the car and noticed a slight vibration (ruff idle) on the engine between 1000-2000 rpm, Happens while revving up and revving down. Dealer says it is normal for the 540i. Is this true? Thanks for your comments.

Check Engine Light! OBDII READS P0740

... fine and there are no noticeable problems with the engine. Is this a misfire? I just checkedmy air-filters to see if it needs to be replaced (and it does) the same day before this check engine light came up. My cars ... -shoot this? Thanks! Any info or help is greatly appreciated. BMW e39 pre-2000 ...