Just wanted to share some BS I have been dealing with for a few years off and on. I installed my EFI probably five years ago. I am using a 88 mustang 5.0 HO engine with explorer upper and lower, explorer TB, Ryans harness etc.
Anyway, I had a major problem that I had trouble for the longest time last year. Finally figured out that my driveability issues were due to crappy rubber vacuum plugs that had degraded in a very short time. Hell even the extras I had in the tool box degraded and they weren't on the engine. They looked fine but when you squeezed them, they looked like swiss cheese. So I switched to the vinyl style and fixed that problem;D One problem I couldn't get a handle on was this intermittent shudder, almost a shut down but not quite when I was driving. Just in the last few days I got new seats and new three point belts installed so I took her for a spin. I started having an idle issue when started and I also noticed that it was really missing pretty badly after driving it around town. I cleaned the IAB and it helped some but not quite enough. So I get out the carb cleaner and starting squirting everything and found I had a vacuum leak around what? The IAB. Needed a little torque on the bottom bolt and that fixed some of my wierd idle.
I had always suspected that my intermittent shudder/shutdown was an electrical problem but could never find it. But ignoring those thoughts, I started with running codes and got nothing out of the ordinary
So I got under the hood and started doing the "shake" test on all the connectors and nothing happened%)
So I shut the rig down and kept looking at connectors, tried a few more and went to start the rig and what? The bronco wouldn't start! I could hear the fuel pump crank and the engine would crank over.Had the wife come down and try cranking the rig while I kept trying wires. Finally I grab the main connector at the dizzy and bam! she cranked right up! So I am guessing that as I was running around town or down the road, it would short and start cutting out.
So I tried to get the connector apart with no love%) So how does one of the connectors come apart? The good news is my missing with the connector, it seems to have fixed the problem but I probably need to still take it apart. Anyway, I drove it around tonight and not one hiccup! Yeah! She idles good, has a great power etc.
Just wanted to throw this out, in hopes it might help someone out.
And of course I am hoping someone will throw me a bone and tell me how to take the connector apart.
Ben
Anyway, I had a major problem that I had trouble for the longest time last year. Finally figured out that my driveability issues were due to crappy rubber vacuum plugs that had degraded in a very short time. Hell even the extras I had in the tool box degraded and they weren't on the engine. They looked fine but when you squeezed them, they looked like swiss cheese. So I switched to the vinyl style and fixed that problem;D One problem I couldn't get a handle on was this intermittent shudder, almost a shut down but not quite when I was driving. Just in the last few days I got new seats and new three point belts installed so I took her for a spin. I started having an idle issue when started and I also noticed that it was really missing pretty badly after driving it around town. I cleaned the IAB and it helped some but not quite enough. So I get out the carb cleaner and starting squirting everything and found I had a vacuum leak around what? The IAB. Needed a little torque on the bottom bolt and that fixed some of my wierd idle.
I had always suspected that my intermittent shudder/shutdown was an electrical problem but could never find it. But ignoring those thoughts, I started with running codes and got nothing out of the ordinary
So I got under the hood and started doing the "shake" test on all the connectors and nothing happened%)So I shut the rig down and kept looking at connectors, tried a few more and went to start the rig and what? The bronco wouldn't start! I could hear the fuel pump crank and the engine would crank over.Had the wife come down and try cranking the rig while I kept trying wires. Finally I grab the main connector at the dizzy and bam! she cranked right up!
So I am guessing that as I was running around town or down the road, it would short and start cutting out.So I tried to get the connector apart with no love%) So how does one of the connectors come apart? The good news is my missing with the connector, it seems to have fixed the problem but I probably need to still take it apart. Anyway, I drove it around tonight and not one hiccup! Yeah! She idles good, has a great power etc.
Just wanted to throw this out, in hopes it might help someone out.
And of course I am hoping someone will throw me a bone and tell me how to take the connector apart.
Ben
