S14 SR20DET missing bad, intermittently

[PyR0NiAk]

You might try a deatschwerks hard-wiring kit. They're $30. Even if it doesn't fix the problem, you'll have the extra assurance of knowing it's not a wiring to fuel pump issue.

[x91s13shawnx]

where do i get that?

[PyR0NiAk]

http://www.deatschwerks.com/catalog/pro ... cts_id=231

[x91s13shawnx]

k thanks

[x91s13shawnx]

it runs good but then it will start to miss for some reason.

[Street_Science]

Have you resistance tested your coolant temp sensor?......
It works on the basis of resistance decreases with increasing temperature, and its called a negative temperature coefficient (NTC) thermistor.... I would definitely start with that ....

Basically the ecu uses this (ect) output as well as other sensors to develop an advance strategy to maintain proper afr ratios for optimum fuel economy and horsepower.... It effectively +/- the short term fuel trim etc....

I would personally verify this with the ohm meter setting on a digital multimeter and check the resistance values.....
The fsm should list the operating ohmage range specs....
Now this is one possibility ......

I would def ask maybe a mod, if the maf has a built in intake air temp sensor, as alot of hotwire and hotscreen type mafs do....

If there is an issue with that, both of these components would cause such a driveability concern.....

[Street_Science]

Repost:

Coolant Temp Sensor:

to test your cts get an ohm meter and unplug the sensor and check the resitance of the sensor. you will also need a thermometer to check the temp of your coolant. the values are as follows:
Resistance 2.1 - 2.9 K ohms at 68 deg F
0.68 - 1.00 K ohms at 122 deg F
0.236 - 0.260 K ohms at 194 deg F

As this value decreases the computer increases fuel load and retards timing to lower cylinder head temps and reduce detonation.

[PyR0NiAk]

What ever happened with this?

[x91s13shawnx]

it fixed itself lol i think it just had some bad gas or something.

[PyR0NiAk]

Good to hear.. Make sure you don't run cheap gas in it... Detonation is ugly.