flusted 0 Posted September 26, 2006 Ive just wired up a air/fuel gauge into my rado. My 1st intentions was it was running super rich as it bogs,pops and farts. I checked the gauge today and its the oppisite! Idle it shows ok,but soon as i floor it it goes off the gauge to lean :shock: I tried adjusting the co pot but no joy. I taped the full throttle switch shut and adjusted the co pot to 250 and flys. Undo the tape,and its slow :cry: With the switch taped,when i floor it,the gauge mometerally hits lean for a split second,then hits just in rich,but its rich on idle. Tried tweaking the co pot with switch taped but the gauge doesnt change? What can cause the lean accelaration? I have new lambda New earth strap from battery to head showing 0 resistance Same strap extended to lambda bracket Tried another ecu checked i have resistance on both throttle micro switches when switched Im lost now and am completly stumped :mad: Any more suggestions? Quote Share this post Link to post Share on other sites
steveo29 0 Posted September 26, 2006 dud co pot? Quote Share this post Link to post Share on other sites
flusted 0 Posted September 27, 2006 Checked with multi meter and seems ok? Quote Share this post Link to post Share on other sites
W3RKD 0 Posted September 27, 2006 What AFR is it running on A, idle B, part throttle C, WOT Quote Share this post Link to post Share on other sites
Polo Classic 0 Posted September 27, 2006 Whats the condition of your 1m hose to the ecu? Quote Share this post Link to post Share on other sites
m3evo 0 Posted September 27, 2006 Have you checked fuel pressure? Tired fuel pump, fuel filter, could cause it to run lean,cheers dave Quote Share this post Link to post Share on other sites
flusted 0 Posted September 27, 2006 What AFR is it running on A, idle B, part throttle C, WOT When the switch ISNT taped, it idles in stoich but part throttle is lean, WOT is off the gauge lean. I am using a cheap gauge though which i presume wont be very accurate,but its a start ecu pipe has been replaced.When ecu pipe is removed with engine running,it idles alot better,but soon as you put pipe back on,it goes lumpy? Quote Share this post Link to post Share on other sites
g60griff 0 Posted September 27, 2006 i was gonna say check the fuel filter Quote Share this post Link to post Share on other sites
flusted 0 Posted September 27, 2006 replaced that less than 500 miles ago Quote Share this post Link to post Share on other sites
g60griff 0 Posted September 27, 2006 right, thats what was making mine go lean. Quote Share this post Link to post Share on other sites
dubburke 0 Posted September 28, 2006 Could it be that you need to use uprated injectors now due to all your mods? Quote Share this post Link to post Share on other sites
flusted 0 Posted September 28, 2006 It was doing it before i modded it. Might buy new genuine lambda and replace the wiring up to ecu as i got lots of interferance on my gauge Quote Share this post Link to post Share on other sites
