Wtf..! Will not go over 4k rmp ...help...

[Myster-E]

The speed sensor wire on the harness needs to be corrected. Not on the diff.

[jrdeamicis]

You have to start with getting your basics sorted.

Fuel Pressure
Verify you have NO CEL - If you dont have a CEL get one.
The car can run with many sensors missing. So use that to your advantage to diagnosis your problem.

Unplug the cam sensor (Disables vanos and puts it into batch fire mode)
Restore
Unplug the vanos

Get someone with an oscilloscope just to inspect your Crank and cam Signal.

If you need someone to talk to about it, feel free to call me

848-248-8029

[E30auddie]

Try swapping clusters if none of that works.

[MR 325]

Try swapping clusters if none of that works.

Hello, did you even READ the OP?

[isra]

ok guys, i still cant figure out what the problem is i took car to a shop but it was useless the guy just took 140 dollars and did not find the problem , all he could say GET A TUNE OR GET 17 POUND INJECTORS. WTF!!! he lost a customer. NOW just to clear everything im not mad for the 140 dollars that went to the trash, i make 25 dollars an hour an work 10-12 hours mon-sat he can keep the 140.

back to topic, i have a not tune or chip m52 obd1 with 1993 325i harness 5 speed an pink top injectors that came with my motor do i need to change to 17 pound injector can that be the problem??

[jrdeamicis]

ok guys, i still cant figure out what the problem is i took car to a shop but it was useless the guy just took 140 dollars and did not find the problem , all he could say GET A TUNE OR GET 17 POUND INJECTORS. WTF!!! he lost a customer. NOW just to clear everything im not mad for the 140 dollars that went to the trash, i make 25 dollars an hour an work 10-12 hours mon-sat he can keep the 140.

back to topic, i have a not tune or chip m52 obd1 with 1993 325i harness 5 speed an pink top injectors that came with my motor do i need to change to 17 pound injector can that be the problem??

Wait wait wait wait wait wait... You are going to trash me? After I brought you back to the shop and did 2-1/4 hours of diagnostics on your car with you? And I helped you diagnosis the problem? Ok.

Lets set the facts straight. I was informed you had completely converted your M52 to OBD1.


A) You did not realize you even had a check engine light till I told you.

B)
I informed you that the wiring for you engine adapter was very questionable. I even gave you heat shrink for free and showed you how to properly seal and connect the adapter since you did not want me to make the repair I also offered the ETM link so you could have the right tools for the job.
C)
You didn't have a diagnostic connector cap on your harness. I sourced one for you and did not charge you for the connector or my time to find it.
D)
You didn't have a working coolant temp gauge. I traced all of your wiring from engine to cluster (C1 [blue connector] pin 26 to be exact) to verify that you had no issues with your wiring. I also fixed a mistake you made in your harness involving the second wire for the coolant temp. I did not have a spare coolant temp sensor at the shop. I asked if you had one, you said you did and it was in the car. I looked but didn't see it. There were parts scattered everywhere and I could not find it. Since your coolant temp sensor was not showing any ohm reading. Im going with its dead..

E) I drove your car for 40 minutes, in many situations trying to replicate the problem. It did not come up while I was driving it. No hiccup, no stutter. It just drove. I removed the diagnostic cap to try and replicate problems but it did not arise.

E) I verified your fuel pressure and that you had your hoses correct.

F) I check you had solid spark. And that all your coils had the same ohm reading.

G) I read your check engine light, which at the time was for a TPS sensor. I checked your TPS, 1.2k-3.9k and no continuity @ WOT. Perfectly in spec. I checked it with my own car to verify. And verified in the book.

When I called to inform you that your car had no been acting up, all of the issues I had found with the car, and that your wiring adapter needed a re-wire you told me that you really needed the car back and declined having any more work done. Understandable. You came to the shop, we talked about the problems, where the problem could be, how to remedy some of the problems with the car (ie having a check engine for looking for knock). I also said you need a tune.

You took the car and it decided to have the problems on the way home for you. Sadly. I helped you diagnosis on the phone, by unplugging the MAF the problems with the car got better. Mixture or MAF problem. Since you swapped in a good MAF with the current one. Its a mixture problem. You even informed me that it had never driven that well before with the MAF unplugged. A huge indicator that its a tuning issue.

You explained to me that you were unhappy with how things played out. After some discussion I asked you to come back to the shop so we can look at the car together. That was 2-1/2 hours today. We drove it around diagnosised many issues.

We used an oscilloscope on the Crank, Cam, HFM, CTS, IAT, and O2. I used my voltmeter on the O2 along with the HFM. We did a driving fuel pressure test and we did an HFM / 02 unplug test. We re-read the CEL which cam out as 1222. Lambda Control #1. The first real CEL of the diagnosis. After unplugging the HFM and the O2 separately the problem seemed to get better with the O2. The O2 had an unknown age. I advised him it would be a good idea to replace this. Since he had no tune for his car and an unknown age O2.

While discussing the swap and other issues it came up at the end of the day that he was using the pink top 21LB injectors on his 93 M50 harness. And that those are the injectors that came with the motor and he just kept them. I told him that they were wrong and that the car is throwing the lamda code due to the wrong size injector.

A tune or injectors. Thats what it comes down to. Yes, I should have caught that earlier in this, however there was even more basic problems at hand.

I apologize if you feel like I robbed you. But please let me know when you find a shop that will let you use there tools, all the diagnostic equipment and invite you back for free when you are unhappy.

Find some injectors or a tune, both of which Im sure will help your car.

Ps. There was a slight oil leak on my floor. You should check your front main seal / oil pan.



Some links and info that I promised to send you.

-You need the stock injectors for your harness. They should be 17lb injectors. And you had the 3.5 bar OBD1 rail Which is correct.

-TRM does the tuning for the M52 converted to OBD1. Matt is on this forum and I am sure he could help you get the right tune for your car to get it up and running.

-http://www.wedophones.com/BMWManualsLead.htm - 1993 your ETM is there. You want to use the M50 3.3.1 wiring diagram. X6000 connector is your ecu, C101 is your body connector (or used to be) and C103 is the glove box connector. At the end of the ETM is the connector diagrams for pinouts and locations to assist you in finding the right connections.

Page 76 of the 1986 ETM talks about the turn signal wiring. That will help you fix your right turn signal.

[MR 325]

I love this ^ Owned.

I have to chime in though. Although I do not condone running big injectors for no reason it really is NOT that big of a deal in this situation and is definitely not causing him any serious issues. I can pretty much guarantee this.

[M-technik-3]

Wow.

[matthugie]

Now THAT is funny.

[highoutput]

I love this ^ Owned.

I have to chime in though. Although I do not condone running big injectors for no reason it really is NOT that big of a deal in this situation and is definitely not causing him any serious issues. I can pretty much guarantee this.

Agreed, and while I understand that the guy did all this diag ect.....

In my shop, you dont get paid "jack" untill you find the correct problem. I can use every piece of diag equipment we have, and spend 8 hours on trying to diag a single problem, HOWEVER if I cant find the actual problem, I cant charge the customer. Basicly because he didnt get what he came for. I could easily write a story that long on lots of different cars, just going over all the things I looked at and checked, but no fix....no money.
I'm not saying I know about this particular situation, but thats usually how it works

[M-technik-3]

Agreed, and while I understand that the guy did all this diag ect.....

In my shop, you dont get paid "jack" untill you find the correct problem. I can use every piece of diag equipment we have, and spend 8 hours on trying to diag a single problem, HOWEVER if I cant find the actual problem, I cant charge the customer. Basicly because he didnt get what he came for. I could easily write a story that long on lots of different cars, just going over all the things I looked at and checked, but no fix....no money.
I'm not saying I know about this particular situation, but thats usually how it works

That works to a degree but what happens when it multiple cars? Shop has overhead and people to pay. Normally it'd be nice but helping a friend only goes so far.

He told the guy what was wrong with the car and opted not to have it fixed, So the work did get done just OP did not want to pony up to fix car 100%.

$140 bucks for what appears as first rate customer service is not bad. Getting a car back covered in grease and a go f___ yourself is another thing.

[kingston]

Damn, I sincerely hope that I can find someone who's as helpful as Jrdeamicis when I have to troubleshoot the (almost) inevitable problems on my 24V swap! All that for $140 is a BARGIAIN!!!!

[jrdeamicis]

I love this ^ Owned.

I have to chime in though. Although I do not condone running big injectors for no reason it really is NOT that big of a deal in this situation and is definitely not causing him any serious issues. I can pretty much guarantee this.

When using the bigger 21lb injectors on the OBD1 rail (which is 3.5) bar you have an increase of fuel by 16.6%. With an unknown O2. That might be a bit much for the ECU to get 14.7.

Next issue, he is running a 2.5 tune for a 2.8 with the wrong size injectors. That is a big deal.

A %12 percent difference in fueling. Compounded by a 16% difference in injector size.

Wow.

Now THAT is funny.

Agreed, and while I understand that the guy did all this diag ect.....

In my shop, you dont get paid "jack" untill you find the correct problem. I can use every piece of diag equipment we have, and spend 8 hours on trying to diag a single problem, HOWEVER if I cant find the actual problem, I cant charge the customer. Basicly because he didnt get what he came for. I could easily write a story that long on lots of different cars, just going over all the things I looked at and checked, but no fix....no money.
I'm not saying I know about this particular situation, but thats usually how it works

I understand your concept, and I have done it before. Even for a member on this forum. Do you own your shop or work at a shop?
However I would prefer to not open this topic in the thread.

By keeping my business open and having customers I can carry insurance that allows customers to be in my shop, and soon rent and work in my shop. So there is most than just rent involved here. By the time I pay for shop bills, trust me. I didn't make $140 dollars.

That works to a degree but what happens when it multiple cars? Shop has overhead and people to pay. Normally it'd be nice but helping a friend only goes so far.

He told the guy what was wrong with the car and opted not to have it fixed, So the work did get done just OP did not want to pony up to fix car 100%.

$140 bucks for what appears as first rate customer service is not bad. Getting a car back covered in grease and a go f___ yourself is another thing.

Damn, I sincerely hope that I can find someone who's as helpful as Jrdeamicis when I have to troubleshoot the (almost) inevitable problems on my 24V swap! All that for $140 is a BARGIAIN!!!!

You should come down and bring your 24v problem or no problem. I would prefer without problems!


Everyone is welcome to come down to the shop and hang out. Check things out. Talk about swaps. We have a few swaps going on right now.

[I*Do*Werke]

OP sounds like a tool. I very strongly dislike forum member who post threads about problems that they more than likely caused themselves due to poor workmanship or disregard for proper procedure. JD, you absolutely did the right thing and no one should give you any sh!t for your professionalism

Edit: Also, if OP cant spell "rpm" correctly in the thread title, I dont think he deserves any help...

[brian52555]

For what it's worth, I've had nothing but good experiences with Julian's work. He's done a fair amount of work on my car and his attention to detail and ability to fabricate really set him apart.

He is THE man to go to for 24v swaps around SF.