2nd, 3rd gear hesitating?
11-18-10 | 06:11 PM
#1
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Junior Member
Joined: Jan 2010
Posts: 28
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From: california
2nd, 3rd gear hesitating?
So i have a 87 GTU N/A and everytime i drive up to 4k rpm in 2nd or 3rd it just all of a sudden just slows down and hesitates any suggestions? what might be it
11-18-10 | 06:13 PM
#2
See FAQ: https://www.rx7club.com/showthread.p...55#post5131155
I have this hesitation whenever I accelerate right around 3500-4000 RPM
The dreaded 3800 RPM hesitation is cause 90% of the time by poor ground connections between the engine, the battery, and the car. Clean or replace all the under hood ground connections. On 86 model year cars , replacing/regrounding the pressure sensor's ground wire has helped (do not re-ground a 87 or later model year). If there is still a problem after that, look at cleaning the fuel injectors and (on a N/A) that your 5th/6th ports are operating correctly.
The dreaded 3800 RPM hesitation is cause 90% of the time by poor ground connections between the engine, the battery, and the car. Clean or replace all the under hood ground connections. On 86 model year cars , replacing/regrounding the pressure sensor's ground wire has helped (do not re-ground a 87 or later model year). If there is still a problem after that, look at cleaning the fuel injectors and (on a N/A) that your 5th/6th ports are operating correctly.
11-20-10 | 02:16 AM
#5
The dreaded 3800 RPM hesitation is cause 90% of the time by poor ground connections between the engine, the battery, and the car. Clean or replace all the under hood ground connections.
Re-grounding the ECU has worked for many. There are multiple ground wires going into the ECU, and these can be spliced into and grounded with a ring terminal. The studs the ECU attaches to will work for a ground point.
Re-grounding the ECU has worked for many. There are multiple ground wires going into the ECU, and these can be spliced into and grounded with a ring terminal. The studs the ECU attaches to will work for a ground point.
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