Renault Laguna 1999 1.9 DTI 100,000 miles - Poor startingArchived Message
Posted by Chris Shelton on July 28, 2004, 5:06 pm
Hi Called to a garage to look at this car for very bad starting will only start if throttle is open,they had code read with SP acr and had codes for crank sensor and IAT these where replaced and codes cleared but still bad starting which customer said is getting worse, and is worse when hot. I code read with KTS and got codes 1131 air flow sensor signal improbable and 1112 engine speed signal both codes where static and could not be cleared. Looked at live data with engine hot air mass sensor was reading 50 kg/h at idle,117 at 2000rpm and 207 at 3000 rpm ,are these reasonable figures? Also the garage checked the earths,engine loom and continuity of speed sensor at ECU socket. I noticed also that when trying to start engine and it was not starting the rev counter was flicking between 1000 and 8000 rpm. Once car has started it drives OK. Any help would be appreciated. Thank You