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12/01/2023 12:40 pm
Topic starter
1995 chevy ck1500 5.7 motor on start up it idles like if it had a cam then it idles normal drives normal but on reverse it shuts off what can cause this ?? Please see video link
Map sensor/idle air intake valve/throttle position sensors Changed
I have code 33 MAP sensor circuit error (signal high indicating low vacuum)
N code 35 IAC problem or idle error
What else can cause this?
1 spark plug is new because i broked 1 while changin a unrelated part does that affect it??
https://imgur.com/gallery/kTCz6g1
2 Answers
1
12/01/2023 1:01 pm
Vacuum leak.
The lines look fine im so lost now anything else it can be?
0
12/01/2023 8:13 pm
If all the vacuum lines are tight, replace the MAP sensor -
https://www.youtube.com/watch?v=Jjq_11y5rfE&ab_channel=TRQ