potatonet 0 Posted March 22, 2005 ok apparently there is something that digifant ECU's have called limp mode: http://www.polo-gt.co.uk/mechanical/VWD ... tment.html I dont know if this is true for corrado's as well, but if it is then my ECU definitely is in it. Quote Share this post Link to post Share on other sites
W3RKD 0 Posted March 22, 2005 this is what steve was trying to explain to you in your last post mate... Quote Share this post Link to post Share on other sites
Supercharged 2 Posted March 22, 2005 Yep, I know it all to well, its when a sensor is dead or reading out of range, the ECU then resorts to a fixed value to keep the engine running and prevent any major damage. Quote Share this post Link to post Share on other sites
potatonet 0 Posted March 22, 2005 well lets just hope... thanks steve wherever you are, just took me some time I guess Quote Share this post Link to post Share on other sites
Jim 2 Posted March 22, 2005 well lets just hope... thanks steve wherever you are Woodbridge in Suffolk, apparently :D Quote Share this post Link to post Share on other sites
G60 Bob 0 Posted March 23, 2005 So how do you tell if your G60 is in limp mode? Is there any objective way to tell i.e. a warning light etc or is it just "my car isnt accelerating as well as normal so it must be in limp mode" type thing. The document i read stated that the ECU can run OK with one duff sensor but as soon as another goes out of range it enters 'limp mode'. Do you need to reset the ECU once the offending sensor is replaced or should it clear itself once it gets a good signal? Quote Share this post Link to post Share on other sites
potatonet 0 Posted March 24, 2005 the limp mode allowed it to get home one day, then just shut down, the guys at tillmans german auto say that the fuel pressure spikes before it shuts down and have a FPR on order I think I am gonna have them replace it with a porsche 944 one so that I get the fuel enrichment, yes ECU must be reset in order for it to work properly Quote Share this post Link to post Share on other sites
h100vw 0 Posted March 24, 2005 The ECU doesn't learn anything so there is no reset. Everything runs off stored maps. As long as all the sensors are working as you start the car it will be happy. Any(just one sensor) failures with the ign on will cause it to ignore particular sensors until they are fixed. As the failure occurs the ECU begins using default data to prevent damage to the engine. I wouldn't fit a 944 FPR(I assume you mean a 3.5BAR one) without a chip designed to run with the additional fuel, it'll just run rich. Gavin Quote Share this post Link to post Share on other sites
