James D Posted December 29, 2017 Share Posted December 29, 2017 I'm experiencing an annoying starting problem from cold with my 1600k series supersport. Trying to start the car has become an issue as when I press the starter button the car fires up & starts, then after less than a second it cuts out. After repeated starting and sometimes having to pump the throttle, the car will eventually start. It is a real shame and a bit of a downer to the start of each drive out especially as the car runs perfectly well when it starts and drives thereafter. The battery is new which I was told would fix the issue but it has not sadly. Any advice would be welcomed. Kind regards, James Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted December 29, 2017 Member Share Posted December 29, 2017 ... as the car runs perfectly well when it starts and drives thereafter.And keeps running at idle with no extra throttle?And when it's nice and warm and you try and start again do the problems recur?Happy ChristmasJonathan Link to comment Share on other sites More sharing options...
Paul Mason Posted December 30, 2017 Share Posted December 30, 2017 Hi James, can't offer much advise, but can say I have a similar starting experience I believe (2001 car with a 1800 k of unknown age....c. 10 years since built on jenvey and emerald). In the cold, car turns over quite a lot and will "catch" after a good few turns. It then fires very slowly and will sometimes die. Then restart and catches again and will tickover very lumpy (almost hearing each fire). I just leave it for a moment (always checking that the oil pressure comes up). Slowly the car will clear it's throat and start to find a steady idle. I leave still as I hear the quiet clack of the tappets filling. There is a fairly heavy smell of fuel throughout and a light fuel mist from the exhaust. After a couple of minutes though, car achieves a clean and steady idle, temperatures and oil pressure all good and runs sweets. Thereafter, idle is very good, very steady and never even close to a concern. It will also poottle around and deal with traffic no issues at all (to the extent passengers have commented how jeckyl and Hyde the car is). So I have just accepted that its a fairly cammy engine, a high compression and a map to give lots of top end power so never going to be the best starting in the cold? Link to comment Share on other sites More sharing options...
James D Posted December 30, 2017 Author Share Posted December 30, 2017 Thank you , the car behaves without fault once it runs whether it be hot or cold, it's the starting that's the issue. From hot it's fine to start. Link to comment Share on other sites More sharing options...
Paul Mason Posted December 30, 2017 Share Posted December 30, 2017 Ditto. And my issue only occurs in the cold. Would say less than 10 degrees is the cut off where becomes more difficult and less than 5 is a challenge. Link to comment Share on other sites More sharing options...
James D Posted December 30, 2017 Author Share Posted December 30, 2017 Paul, must be engine specific as my previous k1600 supersport eu3 was fine in its starting procedure. I see that yours has been a case of acceptance as I guess mine will follow suit. Link to comment Share on other sites More sharing options...
Paul Mason Posted December 30, 2017 Share Posted December 30, 2017 Not sure whether mine is EU2 or 3. But yes, I just accept a slightly rough few mins for the wonders that lie beyond once all is warmed up! Will be starting today as had the exhaust off yesterday to put a little silicon around the primaries where there was a little blow and running up to temperature in the garage on axle stands and expect the same rough few mins as its cold oop North today! Link to comment Share on other sites More sharing options...
Wrightpayne Posted December 30, 2017 Share Posted December 30, 2017 If std rover ECU, Try a Throttle Position Sensor reset TPS. Ign on but dont start it, push throttle to the floor 5 times and ign off.If on standard plenum & throttle body worth researching IACV problems. RegardsIan Link to comment Share on other sites More sharing options...
MADMALC Posted December 30, 2017 Share Posted December 30, 2017 Agree with above as a start.Do not be tempted to to 'play' with the accelerator pedal until the car has started as this tends to upset the system.Also try putting jump leads on when it is cold so you know you have full cranking voltage available. If the voltage is low the ECU does not like it and could be playing up as a result. A cold battery is not a happy one and it may be that yours has poor cold weather performance. Link to comment Share on other sites More sharing options...
elie boone Posted December 30, 2017 Share Posted December 30, 2017 As it only happens when the engine is cold I would take a look at the temp sender to the ECU and it's connections, make sure they are clean and give good contact. Link to comment Share on other sites More sharing options...
SM25T Posted December 30, 2017 Share Posted December 30, 2017 My EU3 started to play up .... needing some throttle for a cold start. I was advised this meant the battery was on the way out. Replaced the battery. It has been perfect since. Link to comment Share on other sites More sharing options...
James D Posted December 31, 2017 Author Share Posted December 31, 2017 Morning, I too had hoped the new battery would be the resolve as the garage replaced it recently (one month ago) which they told me solved the problem, but alas it has not. Link to comment Share on other sites More sharing options...
Wrightpayne Posted December 31, 2017 Share Posted December 31, 2017 Engine/chassis, battery/engine and ecu earths are always worth a check. My EU2 car has a small earth wire direct onto the battery terminal - I've read this is the ecu earth.Ian Link to comment Share on other sites More sharing options...
Area Representative Piers300 Posted December 31, 2017 Area Representative Share Posted December 31, 2017 Try checking the ECU earth connection. Mine had a poor connection and cold starting gradually got worse and worse, until it would not start, unless petrol was squirted into the T/B’s. Once hot it started and ran fine. The earth connection on mine was not a direct connection to the chassis. It is now and now it starts. Piers Link to comment Share on other sites More sharing options...
James D Posted January 12, 2018 Author Share Posted January 12, 2018 Car is all fixed, it was a voltage drop caused by the starter motor that told the ecu it had 8v so caused the ecu to go into fault despite constantly turning over the engine. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted January 13, 2018 Member Share Posted January 13, 2018 Glad it's fixed. What did you do... fit a new battery?Too much voltage drop for something electronic happens surprisingly often in 7s, which is why I usually recommend measuring the battery voltage at rest, minimum during cranking and at 3,000 rpm early in the diagnostic process.Trying to start the car has become an issue as when I press the starter button the car fires up & starts, then after less than a second it cuts out.But yours didn't sound like that... Jonathan Link to comment Share on other sites More sharing options...
James D Posted January 18, 2018 Author Share Posted January 18, 2018 A new starter motor was the cure with additional wiring as a Belton braces. Thank you all for your help. Link to comment Share on other sites More sharing options...
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