Go Back  Cobalt SS Network > General > Problems/Service/Maintenance
Less boost than before/acceleration surge under load >

Less boost than before/acceleration surge under load

Problems/Service/Maintenance Do you have problems with your new 2.0, 2.2, or 2.4L? What kind of service did you have done?

Less boost than before/acceleration surge under load

Old 12-08-2018, 10:47 AM
New Member
Thread Starter
Jeremy Gardner's Avatar
Join Date: 12-22-17
Location: Pennsylvania
Posts: 10
Likes: 0
Received 0 Likes on 0 Posts
Less boost than before/acceleration surge under load

Im sorry this is on the questions thread too but Iím not getting any responses. Please give me some ideas/opinions!! Thanks in advance

no vacuum leaks from IM, blower, or CAI
Codes(pending): (p0101) mass airflow circuit range/performance
(p0128) Coolant thermostat (coolant temp below regulating temperature)
(p0132) o2 circuit high (sensor 1 bank 1)
o2 heater

just today day I got (p0341) camshaft position sensor circuit A range/performance (bank 1 or single sensor)

Last week I broke down an cleaned blower, IM, throttle body, I used to push 17psi last winter, now I only get about 12.5 @wot also I have an acceleration surge where I build about 10psi when I put the throttle to the floor an the car pulls HARD to about 4500rpm but all of a sudden it drops to around 3200 an 6-7psi without lifting my foot off the pedal. No belt slip, no tranny problems, Iím thinking it could be... camshaft sensor a or o2 (both possible with the 0341 code) boost solenoid, bad coils, coolant temp sensor, routed vac lines wrong, alternator maybe? What else an what do you guys think. Itís been 8 months since Iíve seen over 15psi an itís been since I put my I5 throttle body an intake since itís been surging.
Jeremy Gardner is offline  
Related Topics
Thread Starter
Last Post
Jeremy Gardner
How to requests and questions
12-08-2018 12:35 AM
03-23-2018 08:19 PM
10-29-2014 03:02 PM
03-12-2012 08:16 PM
07-12-2011 09:09 PM

Thread Tools
Search this Thread
Quick Reply: Less boost than before/acceleration surge under load

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.