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Cold wet weather hesitation #451607 Apr 17, 5:15am Apr 17, 5:15am
Joined: Nov 2013
Posts: 4
WV
G
GTS25430 OP
New Member
GTS25430 OP
G
New Member

Joined: Nov 2013
Posts: 4
WV
Cold wet weather hesitation
I just replaced the plugs and the ignition coils. It was a huge improvement. I still have a problem with engine hesitation around 1800-2000 rpm under moderate or heavy acceleration and it's much worse when raining . Because the 2nd and 4th synchros are shot I tend to not always be at the optimal rpm.

On my old Corolla replacing the spark plug wires usually helped with this problem. What is the wire called that connects to the ignition coil? Dorman Ignition Coil Connector Kit Is that it ? Do I need four? Will this help with my problem that seems to be affected by cold and moisture?


Many thanks
Steve
2001 Gts 272,000 miles

Re: Cold wet weather hesitation [Re: GTS25430] #451912 Dec 27, 2:21pm Dec 27, 2:21pm
Joined: Dec 2017
Posts: 33
San Diego, CA
C
CAPTAINSOLO
Member
CAPTAINSOLO
C
Member

Joined: Dec 2017
Posts: 33
San Diego, CA
May be the MASS AIRFLOW SENSOR.

Swap in a known good one and reset ECU to remap fuel trim. See if that improves.

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2000 Toyota Celica GTS
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