Repair validated with a four hour grind down the Taconic, then through NYC without any codes or problems

Glad it was that simple!

Neil.

Inspected MAP pressure sensor. Slight corrosion on terminals replaced with spare

Problem resolved , pending pribabtion of 2x month/1000 mile test

Cleanest fault…code…part…solution I’ve had a a while!

Expensive part, $112 at web store

Bosch 0261230029 map,sensor

B006K8ZKT6

Sensor 7/81 in VIDA

Cruising at 50 mph, sudde gulp , and CEL on Pulled over and checked code, P0237 I drove home about 35 miles. With code cleared, no gulps. About 10 miles from home, gulp CEL once CEL is back, gulps return every 20-15 minutes under boost demand. Searched forum ...

... sensor faulty engine coolant thermostat Fault symptoms Malfunction indicator lamp (MIL) lit ------------------------------------- ECM-1600 (P0237) Boost pressure sensor. Signal too high, Signal too low, Permanent fault Diagnostic trouble code (DTC) information Condition If the control module ...

... bought a unit from XemodeX. After installation, no change. The car would try to start, firing for a few seconds at a time and dying. Codes: P0118, P0237 Replaced the coolant temp sensor and the boost pressure sensor. No change, but codes are gone. Replaced MAF with brand new unit, no change. Tested ...

I'd check the wiring, in particular the TCV. When I had work done at the dealer, the wiring harness magically broke apparently, but in their defense, the wires to the TCV from the connector where tired and broke, When fitting the IPD TCV, I always tell folks NOT to screw the front 'leg' all the way ...

Last weekend I tried to tackle a few engine codes my car had. I ordered a new HD TCV from ipd, and a Bosch MAF. I unplugged the battery and installed the parts. The battery would have been disconnected for at least an hour. Fired her up and the check engine light came back immediately. Checked the c...

I'm currently trying to solve some engine codes, a couple are from a bad turbo control valve (P0236 and P0237). The car is making very little boost right now and I ordered a new TCV and tubing to replace the old lines. The car also has a bad exhaust (clogged cat, running rich). ...

I put in a used MAF. That seemed to fix it.I also put in a new turbo boost control. I believe it was the sensors MAPs and MAFs. Cleaning the MAF wasn't enough that time. I think I may have fouled things up by putting in some old fuel additive. My latest issue is https://www.matthewsvolvosite.com/for...