Stock D-jet 1,7 running wery lean but why? S O L V E D |
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Stock D-jet 1,7 running wery lean but why? S O L V E D |
larss |
Jul 9 2019, 01:30 PM
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#1
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Member Group: Members Posts: 428 Joined: 10-September 09 From: Sweden Member No.: 10,787 Region Association: Scandinavia |
Have some problems with a stock 1,7 D-jet that runs wery lean, hunts and pops in the intake, hardly running at all....reving up wery uneven and slowly.
-Engine has not been running for severeal years so there is no history to tell. -Timing triple checked 27 degrees at 3500rpm -Fuel pressure triple checked 31psi -All 4 injectors new (repro) -Trigger points checked OK -Changed to anoter MPS (which runs well in another d-jet) with no difference -Changed head temp sensor with no difference -Compression tested, even around 145psi -Points, condenser, cap, cables are new (also tested with an old set but no difference) -All injectors getting pulses, checked and injector plugs are at the correct injectors -Yes firing order is triple checked The only way to get it running quite OK is to replace the head temp sensor with a potentiometer at 3Kohms, runs quite good with that even when warm. This leads me to think that it is running w e r y lean for some reason. Any ideas? /Lars S |
JeffBowlsby |
Jul 11 2019, 10:07 AM
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#2
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914 Wiring Harnesses Group: Members Posts: 8,485 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
I was not asking about your ignition timing settings, but are your vacuum and mechanical advance functions working? If not it may be a reason for the lag in revving.
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