bogging under load
#32
I replaced the solenoid and the problem is still there. It will go into boost if i ease in the throttle, but wont stay in boost. It sounds like it is running rich when it bogs. When i got back to the shop I noticed that it smells like rotten eggs. I have a down pipe, high flow cat and apexi gt spec exhaust. I wonder if the cat is clogged.
#33
Racecar - Formula 2000
I replaced the solenoid and the problem is still there. It will go into boost if i ease in the throttle, but wont stay in boost. It sounds like it is running rich when it bogs. When i got back to the shop I noticed that it smells like rotten eggs. I have a down pipe, high flow cat and apexi gt spec exhaust. I wonder if the cat is clogged.
Last edited by DaveW; 04-11-20 at 08:21 AM.
#37
RX-7 Bad Ass
iTrader: (55)
Possible. Do you have stock coils?
Could also be the coil pack harness, the original harnesses that have the ground wire will do weird stuff over time. The test for the coils in the shop manual is dead on, if it passes the test the coils are good, if not it's time for a replacement.
Dale
Could also be the coil pack harness, the original harnesses that have the ground wire will do weird stuff over time. The test for the coils in the shop manual is dead on, if it passes the test the coils are good, if not it's time for a replacement.
Dale
#38
Racecar - Formula 2000
Bad plug wire could cause a similar symptom
This reminds me of 20 or so years back - I had 1 bad plug wire that I thought for sure was a loss of boost under load. The engine is so smooth even with one plug not firing under load, that it was not at all obvious that one plug misfiring could be the cause.
#42
It Just Feels Right
iTrader: (11)
Well that's certainly frustrating. I still think it's an air/fuel issue, but running out of troubleshooting ideas. Is it something you upset or did wrong when you did your work, or is it something completely unrelated?? Odds would say it's something you did, but there's the small chance it's something else causing it
#44
Sucker for Punishment
Did you test your pressure sensor? Did you check that vacuum line(ref vac) and make sure it isn't torn or punctured?
If the issue arose when you changed you pulsation damper then you must've hooked something up wrong. Have the vacuum diagram in front of you when you're doing it. I'm sure you'll find something that isn't right.
If the issue arose when you changed you pulsation damper then you must've hooked something up wrong. Have the vacuum diagram in front of you when you're doing it. I'm sure you'll find something that isn't right.
#46
RX-7 Bad Ass
iTrader: (55)
The line on the Y-pipe that points down goes to a nipple on the LIM that is for the injector air bleed sockets for the primary injectors. It helps with atomization. If that's not hooked up that's definitely not helping things!
Dale
Dale
#49
RX-7 Bad Ass
iTrader: (55)
As a good friend of mine used to say, "that may not be the problem but it sure as hell isn't helping things!"
Is it that nipple that the Y-pipe hose goes to?
Dale
Is it that nipple that the Y-pipe hose goes to?
Dale