overboost code from fitting leak?
#1
overboost code from fitting leak?
1st time towing today, since vp, lp, and gauges. Cargo was a 89 suburban.
The truck ran well on the loaded ride of about 50-60km, But the return trip empty, the truck kinda boged down from 100-80 dead pedal like feeling.
boost gauge was reading 20ish. The scangauge read the 0234 code and about 5 mins later I was able to clear it while driving. It stayed off for another 5 mins, then came back and stayed.
The other day I kinda pushed it to see what readings Id get and hit 25 psi of boost but didnt seem to have issues until today. I have the batts unplugged now, waiting...
My question is when I tapped the Boost gauge off the intake horn, the threading was quite loose and required alot of t-tape to seal at all, but I can still undo by hand after tighting with wrench. could that be causing the code?
The truck ran well on the loaded ride of about 50-60km, But the return trip empty, the truck kinda boged down from 100-80 dead pedal like feeling.
boost gauge was reading 20ish. The scangauge read the 0234 code and about 5 mins later I was able to clear it while driving. It stayed off for another 5 mins, then came back and stayed.
The other day I kinda pushed it to see what readings Id get and hit 25 psi of boost but didnt seem to have issues until today. I have the batts unplugged now, waiting...
My question is when I tapped the Boost gauge off the intake horn, the threading was quite loose and required alot of t-tape to seal at all, but I can still undo by hand after tighting with wrench. could that be causing the code?
#4
I've got an over boost code but know that my waste gate is sticking. Stock max boost is supposed to around 20#. My understanding is that you need a boost fooler when intentionally running more boost. I've cleared the code with a scanner without disconnecting batteries but it resets with higher than 20#. The code hasn't been a problem.
#5
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Sounds to me like you are boosting over the stock limits and tripping the code. Unless there is a problem with the MAP Sensor/ECM you should not get that code (on a stock truck) unless you are boosting over the 20.5ish PSI.
Clear the code, and drive around for a while/a day without getting over 15-18psi of boost, and see if the code comes back.
Clear the code, and drive around for a while/a day without getting over 15-18psi of boost, and see if the code comes back.
#7
I hauled another 2 trucks to storage yesterday and it ran well, with no dead pedal or any bad signs. I dont think I can clear codes while I drive. I tried clearing this morning with the key on/engine off and it has stayed off all day.
as mentioned I did 'push the truck' while testing the gauges and hit 25psi boost, that must have triggered the code and I wasnt able to clear it with engine running. Funny the batteries disconected for an hour didnt do it.
I kinda suspect a wastegate issue, But Was the dead pedal I felt from the overboost making the ecm defuel?
preping now for the first 1300km trip after the vp
as mentioned I did 'push the truck' while testing the gauges and hit 25psi boost, that must have triggered the code and I wasnt able to clear it with engine running. Funny the batteries disconected for an hour didnt do it.
I kinda suspect a wastegate issue, But Was the dead pedal I felt from the overboost making the ecm defuel?
preping now for the first 1300km trip after the vp
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#8
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If you are feeling dead pedal and boost/Map Sensor codes are coming up, I would just double check all wiring for the MAP Sensor, make sure the plugs are clean and probably clean the sensor itself just for the heck of it.
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