how do you test a p28 ecu? no start

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Apr 5, 2015 | 07:00 PM

nyckid

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B*a*n*n*e*d

Joined: Sep 2004

Posts: 191

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From: longisland, ny, usa

how do you test a p28 ecu? no start

is there a way to test a ecu to see if its good or not? trying to trouble shoot my no start

Apr 6, 2015 | 03:33 AM

7rrivera7

Honda-Tech Member

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Joined: Aug 2002

Posts: 2,028

Likes: 11

From: Comerio, PR, USA

Re: how do you test a p28 ecu?

If you don't have en engine SIM, try your ECU in a friends car or your friends ECU car. For this to work, MAP sensor and Injector CC's must be the same across both cars...

Apr 6, 2015 | 08:20 AM

nyckid

Thread Starter

B*a*n*n*e*d

Joined: Sep 2004

Posts: 191

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From: longisland, ny, usa

Re: how do you test a p28 ecu?

they dont own hondas

Apr 6, 2015 | 06:56 PM

VegasInvasion

I'm Huge In Japan

Joined: Apr 2008

Posts: 1,314

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From: the 615

Re: how do you test a p28 ecu?

there is no way to bench an ECU without an engine simulator. you can open up the case to see if anything is obviously burnt or poorly installed, but that's it. send it to someone for testing, or get another ECU from a JY.

Apr 6, 2015 | 07:07 PM

nyckid

Thread Starter

B*a*n*n*e*d

Joined: Sep 2004

Posts: 191

Likes: 1

From: longisland, ny, usa

Re: how do you test a p28 ecu?

ecu looks fine/nothing burnt

new batt
new icm
new cap
new rotor
new main relay
new coil
plugs and cables are good

all fuses are good fuel pump primes and sprays out when i loosened the nut from the fuel filter

distributor gets power
grounds are good