W202 c200 1998 Starts then cuts out

MARK B PICKERING

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C200 1998 w202
Car starts each time, runs for approx 5 secs then stops. So petrol getting through. Have cleaned Throttle body and observed valve moving ok with ignition. Replaced accelerator position sensor and cleaned maf.
Have had car idle for over a minute at times, but as soon as accelerator depressed, cuts out.
Thinking maybe a vacuum line ? (Perhaps evap ? or charcoal line) But unsure how to test any of these...
Car just cut out on a long journey and would not restart. Had previously had trouble with idle fluctuations on very cold days, but would unplug maf and run ok.(plugged maf back in after 10mins - all ok)
ANYONE any ideas as really stumped and now contemplating saying goodbye to it....
 

mattkh

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A160 W168 1999 1.6
When the car cut out on the long journey, what was done to fix it ?
 
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MARK B PICKERING

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When the car cut out on the long journey, what was done to fix it ?
Nothing.... Relay Truck picked it up and dropped it where it stands now. OBD 38 pin adapter I bought will not allow ECU connection so am trying to source one that will work with a decent reader (have access to expensive one, think Bluepoint). I am sure this is a fuel pressure problem of sorts... But do have petrol being pumped thro'
 

LostKiwi

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'93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi
There are very few code readers that are happy reading the 38pin connectors.
Where in the country are you?

Adapter cables don't often work and if they do they will only return a limited subset of codes.
 
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MARK B PICKERING

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There are very few code readers that are happy reading the 38pin connectors.
Where in the country are you?

Adapter cables don't often work and if they do they will only return a limited subset of codes.
I'm currently in Harlow, Essex at my Ex's as was visiting for 2 of my daughters birthdays.... But really need to get back to Norwich, Norfolk....
 

LostKiwi

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'93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi
I'm currently in Harlow, Essex at my Ex's as was visiting for 2 of my daughters birthdays.... But really need to get back to Norwich, Norfolk....
Ok. If you were nearer I'd offer to run diags from my Star but you're too far away at 100 miles.
 
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MARK B PICKERING

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He was just my Eldest daughters boyfriend, who luckily had access to a Transit Car Transporter. (Had no breakdown cover at that time.... But now covered !! But that'll be a last resort to get home)
Have had a couple of his friends take a look... They have the decent OBD reader, but no good without a 38 pin that we know would work.........
We did at one point have car running long enough to go half a mile or so... (After a lot of heavy revving and with an initial start up with top of throttle body exposed) But as it was very cold, and a Sunday and I guess no cash being exchanged... No real proper solution... If you know what I mean...
 

LostKiwi

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'93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi
It really does require a proper code reading session but I'm wondering if this is a crank position sensor issue.
Turning the key primes the fuel pump but it will then cut power to the pump until it sees a signal from the crank position sensor.
 


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