PRNevada

Hi; Dealer cleared the CEL, I drove the truck 20 miles home and it did not come back on. We will see how long it takes to re-light. I don't notice any change in how the truck drives, and the dealer did not raise any concerns about continuing to drive the truck while the issue remains unresolved. 10/16/20 Update: New Particulate Matter Sensor installed yesterday. The problem is explained in GM Tech-Link if you search PIP5748A. Hopefully the problem is resolved.

Hello; New to the forum and found this thread when researching the P1488 code. Bought the truck in Reno NV in May 2020. Have not driven it much - now 3950 miles, mostly from long trips. CEL came on September 27. Took it to the dealer Oct. 7, and dealer found code P1488 and said that GM tells them to do a smoke test using tool GE-52250 (which the dealer does not have because GM has back ordered the tool for over a year). The dealer then told me that the GM suggested fix is to replace the particulate sensor - which is out of stock and back ordered. GM also asked the dealer to check that the sensor and the exhaust clamp are tight. Mechanic found both to be tight. Hopefully this is not the start of a long chain of problems as listed in other posts on this topic.