03-02-2021, 03:22 AM
Thank you for the replys.
OK got the tests/recommended stuff done.
1. Motor vacuum looks good, steady and moves with rpm rise.
2. Burn symptoms, spark plugs are dry and not fowling.
3. I had injector pro clean/flow tested at injector shop before heading to the shop 2+ years ago.
4. Tested ECT, shows proper reading of 2.2 cold.
5. Tested map, it tested perfect per specs that are on your page. Has good vacuum to the map.
6. I am a manual transmission.
7. Putting vacuum on the EGR it fails to hold and leaks. So I blocked it off with the solid gasket and plugged the hose going to it.
8. Distributor mechanical and vacuum advance seems to move back-and-forth freely. Pulling vacuum on the vacuum advance and it failed, won’t hardly move with putting vacuum on it and leaks out. I read a bit on it and it seems to only adjust timing slightly and shouldn’t stop my motor from running?? I will fully disassemble the Dizzy to do an internal inspection as recommended.
9. I unplugged the O2 sensor as a test, didn’t change running condition. Is that the test? Just unplug the connector?
10. I unplugged ECT for test, didn’t change running condition.
11. Recommended to test sensors hot. I will run motor a bit to get warm and retest those sensors hot within a day or two.
12. I don’t have a scope but I would love to get one to add to my tools. I was looking at the Pico 2204a scope. Have any recommendations on a affordable scope? “ I would still have to learn to use”.
13. Looking in the airhorn at the injector spray cone, it looks good. Good pattern, no dribble, or anything weird.
14. My distributor is original, I have new NGK wires, cap, Rotor, and ignition coil.
15. Stated my primary resistance at Coil is out of spec. I have two, one old and one new I purchased a while ago. I tested again and this is what I got. The prime is 2.1 and 1.9. The secondary are 7.8 and 8.7. The book does state prime to be .72-.88 ohms and secondary to be 10.2-14. kilohms. Is this a problem? Specs seem to have changed since last tested not sure why other than it’s been 2+ years.
Things I’m going to do. Test sensors hot and take dizzy apart for inspection.
What else can I test or redo any tests a certain way? Thanks again for all the replys.
OK got the tests/recommended stuff done.
1. Motor vacuum looks good, steady and moves with rpm rise.
2. Burn symptoms, spark plugs are dry and not fowling.
3. I had injector pro clean/flow tested at injector shop before heading to the shop 2+ years ago.
4. Tested ECT, shows proper reading of 2.2 cold.
5. Tested map, it tested perfect per specs that are on your page. Has good vacuum to the map.
6. I am a manual transmission.
7. Putting vacuum on the EGR it fails to hold and leaks. So I blocked it off with the solid gasket and plugged the hose going to it.
8. Distributor mechanical and vacuum advance seems to move back-and-forth freely. Pulling vacuum on the vacuum advance and it failed, won’t hardly move with putting vacuum on it and leaks out. I read a bit on it and it seems to only adjust timing slightly and shouldn’t stop my motor from running?? I will fully disassemble the Dizzy to do an internal inspection as recommended.
9. I unplugged the O2 sensor as a test, didn’t change running condition. Is that the test? Just unplug the connector?
10. I unplugged ECT for test, didn’t change running condition.
11. Recommended to test sensors hot. I will run motor a bit to get warm and retest those sensors hot within a day or two.
12. I don’t have a scope but I would love to get one to add to my tools. I was looking at the Pico 2204a scope. Have any recommendations on a affordable scope? “ I would still have to learn to use”.
13. Looking in the airhorn at the injector spray cone, it looks good. Good pattern, no dribble, or anything weird.
14. My distributor is original, I have new NGK wires, cap, Rotor, and ignition coil.
15. Stated my primary resistance at Coil is out of spec. I have two, one old and one new I purchased a while ago. I tested again and this is what I got. The prime is 2.1 and 1.9. The secondary are 7.8 and 8.7. The book does state prime to be .72-.88 ohms and secondary to be 10.2-14. kilohms. Is this a problem? Specs seem to have changed since last tested not sure why other than it’s been 2+ years.
Things I’m going to do. Test sensors hot and take dizzy apart for inspection.
What else can I test or redo any tests a certain way? Thanks again for all the replys.