Trouble testing spark. Why don't I see spark when cranking?
11-05-2014, 04:08 AM
#1
Trouble testing spark. Why don't I see spark when cranking?
Needed to check for spark on my '93 Del Sol Model S.
Disconnected fuel pump relay under dash. Inserted my "in line" spark testing tool. Turned key. No sound from fuel pump. No spark on any plug.
Then, re-connected fuel pump relay, inserted in-line spark testing tool, turned key, car started and I saw spark on all.
Why wouldn't I see spark when the car cranks and with the fuel pump relay disconnected?
Thanks.
Disconnected fuel pump relay under dash. Inserted my "in line" spark testing tool. Turned key. No sound from fuel pump. No spark on any plug.
Then, re-connected fuel pump relay, inserted in-line spark testing tool, turned key, car started and I saw spark on all.
Why wouldn't I see spark when the car cranks and with the fuel pump relay disconnected?
Thanks.
11-05-2014, 04:53 AM
#2
Re: Trouble testing spark. Why don't I see spark when cranking?
Needed to check for spark on my '93 Del Sol Model S.
Disconnected fuel pump relay under dash. Inserted my "in line" spark testing tool. Turned key. No sound from fuel pump. No spark on any plug.
Then, re-connected fuel pump relay, inserted in-line spark testing tool, turned key, car started and I saw spark on all.
Why wouldn't I see spark when the car cranks and with the fuel pump relay disconnected?
Thanks.
Disconnected fuel pump relay under dash. Inserted my "in line" spark testing tool. Turned key. No sound from fuel pump. No spark on any plug.
Then, re-connected fuel pump relay, inserted in-line spark testing tool, turned key, car started and I saw spark on all.
Why wouldn't I see spark when the car cranks and with the fuel pump relay disconnected?
Thanks.
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