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54 Posts
any help would be appreciated
after i did some supercharger work in the car , it started running lean
now the car is back to stock so i can try to find the problem
everything is as per my knowledge fixed correctly except the manifold was fixed without a gasket but with rtv silicone and its a y8 manifold with the idle motor on it so i used a y7 throttle and just kept the other idle valve on place
the car is ok on idle and below 3000 rpm but above 3000 the narrow band gauge goes straight to lean and reads 20 .
the egt is fixed on the downpipe , i know its not the best place but the idea was to know the avarge temp on idle conditions and use it at a reference.
reads 450c driving on highway at 3500 rpm
so i changed the spark plugs which had a carbon ring (platnuim ),after one day of use the new spark plugs shows a carbon ring again Bkr6e
tested vacuum with a shop gauge which SEEMS there is no leak
my vacuum gauge reads 21
and my idle is stable
cleaned the injectors again and raised the fuel pressure to 55
fuel pressure doesn't drop with revving
hmmm the sparkplugs shows its rich but the gauge reads lean
any help
after i did some supercharger work in the car , it started running lean
now the car is back to stock so i can try to find the problem
everything is as per my knowledge fixed correctly except the manifold was fixed without a gasket but with rtv silicone and its a y8 manifold with the idle motor on it so i used a y7 throttle and just kept the other idle valve on place
the car is ok on idle and below 3000 rpm but above 3000 the narrow band gauge goes straight to lean and reads 20 .
the egt is fixed on the downpipe , i know its not the best place but the idea was to know the avarge temp on idle conditions and use it at a reference.
reads 450c driving on highway at 3500 rpm
so i changed the spark plugs which had a carbon ring (platnuim ),after one day of use the new spark plugs shows a carbon ring again Bkr6e
tested vacuum with a shop gauge which SEEMS there is no leak
my vacuum gauge reads 21
and my idle is stable
cleaned the injectors again and raised the fuel pressure to 55
fuel pressure doesn't drop with revving
hmmm the sparkplugs shows its rich but the gauge reads lean
any help