[W126 Coupe] 560 SEC Cutting Out

[Jay Manek]

Thanks,

I swapped the OVP last night and then drove 6 miles through traffic... the 
car did no cut out at all... However the problem has always been very 
intermittent.. so ill report back once ive had more of a drive..

I didnt originally suspect OVP as it was replaced around 3 years ago with a 
new Bosch unit.


Many Thanks & Regards

Jay Manek |

--------------------------------------------------
From: "Dick Spellman" <dick.spellman at gmail.com>
Sent: Saturday, May 15, 2010 6:29 PM
To: "Mercedes Coupes Mailing Lists" <mbcoupes at mbcoupes.com>
Subject: Re: [W126 Coupe] 560 SEC Cutting Out


> Hi Jay,

>

> Here is one way of isolating the problem.

>

> If you have a fuel pressure gauge, hook this up and start the engine. You 

> should see 5.2-5.3 bar on the gauge with engine/pumps running.

>

> When the engine quits look at the gauge if, it's still at pressure your 

> problem is electric.  If the pressure is down you know it's fuel.

>

> -\Dick

>

> On 5/15/2010 12:38 PM, Jay Manek wrote:

>> Hi guys,

>> Well i swapped Crank Sensor and the EZL... at first I thought id got it

>> as one of the connections was green...but just getting the car out of

>> the garage and it stalled on me.

>> Its getting pretty annoying! Any ideas guys?

>> I ordered a crank sensor from mercedes but they sent me the TDC sender

>> instead.. When i told them, they said a new crank sensor was over £200

>> GBP.. so i swapped both the EZL and crank sensor from my donor car.

>> So any idea where this TDC sender goes? Its a probe, looks like the

>> crank sensor and the other end has a 3 pin rectangular connector... may

>> as well change it now ive paid for it!

>> Many Thanks & Regards

>> Jay Manek

>>

>> *From:* Axel Wulff <mailto:axelwulff at hotmail.com>

>> *Sent:* Monday, May 10, 2010 1:04 PM

>> *To:* mbcoupes at mbcoupes.com <mailto:mbcoupes at mbcoupes.com>

>> *Subject:* Re: [W126 Coupe] 560 SEC Cutting Out

>>

>> Jay,

>>

>> About the cutting in and out; have you checked the EZL?

>>

>> Not a part that seems to fail a lot on the M117, but I've had a lot of

>> EZL issues with the M119 engine in my car and those are the exact 

>> symptoms.

>>

>> Regards,

>> Axel J. Wulff

>> 610-731-5453 Cellular

>> 610-572-4611 Home

>>

>>

>>

>>

>> ------------------------------------------------------------------------

>> From: jaymanek at hotmail.com <mailto:jaymanek at hotmail.com>

>> To: mbcoupes at mbcoupes.com <mailto:mbcoupes at mbcoupes.com>

>> Date: Mon, 10 May 2010 12:37:45 +0100

>> Subject: [W126 Coupe] 560 SEC Cutting Out

>>

>> Hi All,

>> Ok im struggling with my 560 SEC..

>> Basically it just cuts out at low revs.. it will idle for hours without

>> an issue but when driving it cuts out when approaching a junction..

>> sometimes when approaching a junction at low speed and other times just

>> when pulling away..

>> I have swapped the Idle control unit and Fuel Pump Relay.. but no

>> difference...

>> When this first started happening, the car would not restart and the

>> fuel pump would not run, I had to jumper the pins (i think 15 and 47?)

>> to get the fuel pump to run so I could get home.. It did this even with

>> the brand new relay... but recently it seems to restart immediately...

>> HELP!!

>> Many Thanks & Regards

>> Jay Manek

>

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