1.8l Ljet starts fine in cold weather, but not when it's warm? |
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1.8l Ljet starts fine in cold weather, but not when it's warm? |
Geezer914 |
Feb 25 2018, 02:02 PM
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#1
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Geezer914 Group: Members Posts: 1,415 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States |
1975 Ljet 1.8l. The car starts and runs fine in cold weather. When it is warm, the engine cranks and cranks and will not start. Use a little starting fluid, it starts, but unless I keep my foot on the accelerator, it will stall until it warms up. Head temperature sensor???
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malcolm2 |
Feb 26 2018, 01:59 PM
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#2
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Advanced Member Group: Members Posts: 2,745 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
Tim and I did some trouble shooting one time. I have a Air/Fuel meter that really told me what the engine was doing during this test. But I un screwed the TS2 sensor (CHT for FI). Plugged the wire back in and stuck the sensor part in a cup of ice water and started the engine. The brain thought it was 32 * outside so it loaded up the engine with fuel.... A/F sensor gave us a rich A/F reading... 10-ish IIRC so we knew my sensor (914 rubber) and brain were working.
The graph below is partially from Ratwell's site. The green line is one of my old sensors that I replaced with 914 rubber's sensor. I did these tests in the kitchen with boiling water. should have used cooking oil to get hotter data points, but you get the idea. what was the temp when you ohmed out the sensor? 70 is kinda hot for NJ this time of year. (IMG:style_emoticons/default/piratenanner.gif) Does it fall in line with Blue and Red? |
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