james Posted January 14, 2011 Share Posted January 14, 2011 even at the lights your in vtec that would explain 28mpg Link to comment Share on other sites More sharing options...
johngreen537 Posted January 14, 2011 Share Posted January 14, 2011 lol, I'm on a motorway 90 miles a day mate As VTEC comes in at 85ish, I, erm, drive slightly faster than that usually Maybe I should get a APEXI to raise the engagement and save some fuel pennies! Link to comment Share on other sites More sharing options...
james Posted January 14, 2011 Share Posted January 14, 2011 Usually if car is left for a day then from cold it hesitates sporadically. Come off then on throttle but makes no difference, hesitation duration about 1-3 seconds on and off until up to temp. Never happened once warmed up and pulls like a train still when warmed.Getting bad to worse. MODs K&N panel filter , 4-1 ss system - both mods fitted for 3 years so unlikely to be related.Any ideas? Thanks how is your filter is it clean Link to comment Share on other sites More sharing options...
KiNK43 Posted January 14, 2011 Share Posted January 14, 2011 Seriouly I get about 100 miles to 30 squid. Im jealous!Anyway. I didnt think lambda was used when cold. Thaught ecu would run default values until warm.So would lambda affect cold running? Link to comment Share on other sites More sharing options...
digitalfaze Posted January 15, 2011 Share Posted January 15, 2011 a long shot but could you plug leads be letting in condensation when its cold causing it to hesitate? my old sunny had a lead that use to leak a bit of water through the lead and stop the plug sparking, causing it to hesitate Link to comment Share on other sites More sharing options...
Gav_ek4 Posted January 19, 2011 Share Posted January 19, 2011 trust me ...unplug the lambda sensor and take the car for a run...report back to thread after run ps ignore orange light on dash during test, will go out after plugging lambda back in and on the subject of lambdas either working or notnot true, we m owners run 4 wire heated lambda sensors, sometines the heater side of them fails causing the lambda to think the car is up to temp/not up to temp, keeping car running on basic ecu parameters depending on which way the sensor has failed (basically can have the car running in closed loop lambda one minute then swapping back over to open loop the next, one way will richen the fuel mixture causing poor fuel econemy and black smoke from the exhaust, the other way will lean the air fuel ratio off to much ,sometimes causing a full blown missfire(lean miss) or a small hessitation,usually under light throttle applications ) sorry for the story lolz Link to comment Share on other sites More sharing options...
civicturbo79 Posted January 19, 2011 Share Posted January 19, 2011 Ill 2nd that , my brother has had a misfire on part throttle for months and we had but on , plugs ,leads , cap , arm , coil , the stuff you would think , there was no engine light on . I put a lamba sensor in yesterday and guess what it sorted it ,it is now like brand new , so for whatever reason it did not work good enough for the car to run right but not bad enough to but the light on a give me a code so i could sort the problem . Rich. Link to comment Share on other sites More sharing options...
IceMan Posted February 22, 2011 Author Share Posted February 22, 2011 Well as with most past faults with this car - it fixed its self. Im sure Honda inject nano bots into there engines... Link to comment Share on other sites More sharing options...
DAVEMB2 Posted February 22, 2011 Share Posted February 22, 2011 Link to comment Share on other sites More sharing options...
BigJim160 Posted October 3, 2011 Share Posted October 3, 2011 and on the subject of lambdas either working or notnot true, we m owners run 4 wire heated lambda sensors, sometines the heater side of them fails causing the lambda to think the car is up to temp/not up to temp, keeping car running on basic ecu parameters depending on which way the sensor has failed (basically can have the car running in closed loop lambda one minute then swapping back over to open loop the next, one way will richen the fuel mixture causing poor fuel econemy and black smoke from the exhaust, the other way will lean the air fuel ratio off to much ,sometimes causing a full blown missfire(lean miss) or a small hessitation,usually under light throttle applications ) This is interesting for me.. My car seems to be on choke for a very long time when cold. Could the lambda have something to do with this? Even when the temp guage has started to climb, it still ticks over well above 1k rpm until almost at running temp. Is this normal?Also today I gave the car a bit of a bootful, was at about 6.5 - 7k rpm and the car had the biggest flat spot/held back for a second or two, then bang straight back onto full power. It's never done this before, could this be the lambda too?Thanks guys 1"£££$££"! Link to comment Share on other sites More sharing options...
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