 Help! I'm Stymied!, Only firing on #3 and # 4 |
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| DipShit |
 Jun 12 2009, 10:19 AM
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Member  Group: Members Posts: 199 Joined: 26-May 04 From: Cheyenne, WY Member No.: 2,107  |
1.7 D-Jet
Engine was running just great until about two weeks ago, sigh. Now only fires on # 3 and # 4. I have cleaned every connection including all grounds. And I mean cleaned them good! The elecrical appears to be just fine. I get a good noid light at both # 1 and # 2. The injectors have tested just fine as well (I'm getting about 7cc in 15 seconds). I have 40lbs of pressure the 1,2 rail. The spark plugs are getting juice and fire. I have installed new points, cleaned the triggers (which shouldn't have mattered because of the sequence) and set the dwell. I'm a tad under at 44 degrees, but again shouldn't keep # 1 and # 2 from firing. The timing has to be close as it runs really smooth for just two cylinders. If I pull the power to injector 3 or 4, I get a real good drop and she will die. If I pull 1 or 2 - no change. If I add propane to the intake, I get a good response in higher rpm. I had originally traced to the Temp II sensor and it failed, so I replaced it. A new one seemed to be the fix, but only for a moment. I have good fuel, spark and air - (IMG:style_emoticons/default/WTF.gif) I'm STYMIED (or just a REAL DIPSHIT) |
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Posts in this topic
DipShit Help! I'm Stymied! Jun 12 2009, 10:19 AM
dr914@autoatlanta.com Valves too tight????
1.7 D-Jet
Engine was run... Jun 12 2009, 10:42 AM DipShit I figured I'd try to get the valves adjusted n... Jun 12 2009, 10:51 AM tod914 29.4 for fuel pressure. Jun 12 2009, 11:06 AM
DipShit
29.4 for fuel pressure.
Typo - it was 30 not 4... Jun 12 2009, 11:11 AM thompson-mfr Slight Hijack:
I am having almost exactly the sam... Jun 12 2009, 11:33 AM DipShit don't think it's the ECU as I have replace... Jun 12 2009, 11:46 AM thompson-mfr
don't think it's the ECU as I have replac... Jun 12 2009, 11:51 AM jt914-6 Try cleaning the trigger points again. Remove them... Jun 12 2009, 11:54 AM thompson-mfr
Try cleaning the trigger points again. Remove the... Jun 12 2009, 12:11 PM mike_the_man Are the plugs fouled? If it's getting the rig... Jun 12 2009, 11:55 AM Dr Evil The injectors fire in batches of 2 ( 1&4, 2... Jun 12 2009, 12:09 PM DipShit
The injectors fire in batches of 2 ( 1&4, 2... Jun 12 2009, 12:15 PM Dr Evil
The injectors fire in batches of 2 ( 1&4, 2... Jun 12 2009, 12:17 PM DipShit Plugs look really good. And the trigger points ha... Jun 12 2009, 12:10 PM jt914-6 When I had a FI four we would use regular paper. Y... Jun 12 2009, 12:15 PM DipShit
When I had a FI four we would use regular paper. ... Jun 12 2009, 12:17 PM thompson-mfr
When I had a FI four we would use regular paper. ... Jun 12 2009, 03:25 PM Dr Evil Ya, valves, rings, and head studs are in the equat... Jun 12 2009, 12:16 PM DipShit Compression test and valves are next on my to do l... Jun 12 2009, 12:22 PM Dr Evil I would suspect the valves if they shared a common... Jun 12 2009, 02:05 PM roadster fan
I had originally traced to the Temp II sensor and... Jun 12 2009, 04:12 PM DipShit I do have another Temp II sensor as I bought two. ... Jun 12 2009, 04:26 PM r_towle You are wasting your time if you have not set the ... Jun 12 2009, 05:01 PM kwales Looking at the circuit diagram, everything we are ... Jun 12 2009, 05:22 PM tod914 On a previous car, I went nuts trying to sort out ... Jun 12 2009, 06:06 PM DipShit Here is the latest that I have done and I am STILL... Jun 26 2009, 09:24 AM Vacca Rabite
Here is the latest that I have done and I am STIL... Jun 26 2009, 10:35 AM DipShit
Here is the latest that I have done and I am STI... Jun 26 2009, 11:13 AM Vacca Rabite Check compression with the engine warm (if possibl... Jun 26 2009, 11:37 AM DipShit
Check compression with the engine warm (if possib... Jun 26 2009, 12:02 PM Vacca Rabite Your dead cylinders have higher compression then y... Jun 26 2009, 12:54 PM DipShit I agree, but to make it worse, sometimes when I ge... Jun 26 2009, 02:15 PM Tom for 1+2 not to run, it almost sounds like you are ... Jun 26 2009, 02:24 PM DipShit Fuel lines are hooked up correctly. The car was r... Jun 26 2009, 03:30 PM DipShit Sure haven't found anything obvious or simple ... Jul 1 2009, 03:19 PM Vacca Rabite Could you take pictures of your spark plugs and po... Jul 1 2009, 03:43 PM Gint Hey Mark, pull the trigger points connector from ... Jul 1 2009, 07:26 PM r_towle Ohm out the wiring harness from the ECU to the FI ... Jul 1 2009, 07:48 PM ghuff
Ohm out the wiring harness from the ECU to the FI... Jul 1 2009, 09:20 PM DipShit Hadn't touched her in several days until this ... Jul 2 2009, 03:01 PM DipShit After everything I have done, I went back to the s... Jul 17 2009, 03:20 PM DipShit Actually I think it was Capn' Krusty that made... Jul 17 2009, 03:23 PM Kirmizi Way To Go Mark!
Just in time for all the tou... Jul 17 2009, 03:29 PM DipShit
Way To Go Mark!
Just in time for all the to... Jul 20 2009, 11:01 AM  |
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