benjike70 Posted November 26, 2014 Share Posted November 26, 2014 I have replaced the 1g-eu with the 1g-ge non tvis in my GX71 mark 2.Just wondering what could be causing it to be so sluggish up to about 5000rpm.It idles very high if I wind the idle down low manually it will cut out slightly before revving.Its running the old 1g-eu fuel pump and filter/vaccum setup. Maybe it's not getting enough gas? the old sohc internal fuelpump isnt up to the beat? any help appreciated. Cheers Quote Link to comment Share on other sites More sharing options...
tortron Posted November 27, 2014 Share Posted November 27, 2014 At one point my distributor locked up so it had no mechanical advance. This is a 1940s engone mind so it may not help. With no mechanical or vac advance it had been set up to run fine once up to 4000rpm, like a generator. Anyway as the statuc advance was set at 4000rpm it was real slow to get any revs up and had tge idle set real high to compensate perhaps check the timing is within range and is changing under load? Quote Link to comment Share on other sites More sharing options...
HighLUX Posted November 27, 2014 Share Posted November 27, 2014 Yeah try a better fuel pump for starters Quote Link to comment Share on other sites More sharing options...
Mitch.W Posted November 27, 2014 Share Posted November 27, 2014 1ge fuel pump should pump plenty fuel through, i am using a factory one on my single turbo 1ggte and it runs fine Quote Link to comment Share on other sites More sharing options...
benjike70 Posted November 27, 2014 Author Share Posted November 27, 2014 Cheers for the suggestions.Have checked timing twice it seems to be fine.This current pump(assuming it is original) has done 300 thou kms if thats a start. Quote Link to comment Share on other sites More sharing options...
mjrstar Posted November 27, 2014 Share Posted November 27, 2014 could do a plug chop like the old days to see if is short of fuel. Quote Link to comment Share on other sites More sharing options...
bigmatt4 Posted November 27, 2014 Share Posted November 27, 2014 have you tried to get flash codes out of it ? is it rich or lean ? i would be suspecting airflow meter- map sensor issue or vacume leak as you idle issues indicate an air leak Quote Link to comment Share on other sites More sharing options...
Frosty Posted December 14, 2014 Share Posted December 14, 2014 If your running a 1G-eu ECU make sure all the sensors, idle ups, vacume network and the AFM are the same as the 1G-eu. Even the guts of the dizzy into the 1G-Ge one if the part numbers are different. High idle or stalling if you lower it may only be the TPS adjustment, if you move the idle point on the throttle body the tps needs to be adjusted the same amount to keep everything in sync. Have you tried using the 1G-eu throttle body and or the TPS on the new engine if it's compatible? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.